diff --git a/.github/workflows/plugin-linting.yml b/.github/workflows/plugin-linting.yml
index 17864e9..affe103 100644
--- a/.github/workflows/plugin-linting.yml
+++ b/.github/workflows/plugin-linting.yml
@@ -20,13 +20,10 @@ jobs:
           node-version: 12
 
       - name: Set up ruby
-        uses: actions/setup-ruby@v1
+        uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.7
 
-      - name: Setup bundler
-        run: gem install bundler -v 2.1.4 --no-doc
-
       - name: Setup gems
         run: bundle install --jobs 4
 
@@ -46,5 +43,8 @@ jobs:
             yarn prettier --list-different "test/**/*.{js,es6}" ; \
           fi
 
+      - name: Ember template lint
+        run: yarn ember-template-lint assets/javascripts
+
       - name: Rubocop
         run: bundle exec rubocop .
diff --git a/.github/workflows/plugin-tests.yml b/.github/workflows/plugin-tests.yml
index bee02fb..ad05806 100644
--- a/.github/workflows/plugin-tests.yml
+++ b/.github/workflows/plugin-tests.yml
@@ -10,7 +10,7 @@ on:
 jobs:
   build:
     name: ${{ matrix.build_type }}
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     timeout-minutes: 60
 
     env:
@@ -26,8 +26,7 @@ jobs:
 
       matrix:
         build_type: ["backend", "frontend"]
-        os: [ubuntu-latest]
-        ruby: ["2.6"]
+        ruby: ["2.7"]
         postgres: ["12"]
         redis: ["4.x"]
 
@@ -47,13 +46,13 @@ jobs:
           --health-retries 5
 
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v2
         with:
           repository: discourse/discourse
           fetch-depth: 1
 
       - name: Install plugin
-        uses: actions/checkout@master
+        uses: actions/checkout@v2
         with:
           path: plugins/${{ github.event.repository.name }}
           fetch-depth: 1
@@ -94,27 +93,14 @@ jobs:
           redis-version: ${{ matrix.redis }}
 
       - name: Setup ruby
-        uses: actions/setup-ruby@v1
+        uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
 
-      - name: Setup bundler
-        run: |
-          gem install bundler -v 2.1.4 --no-doc
-          bundle config deployment 'true'
-          bundle config without 'development'
-
-      - name: Bundler cache
-        uses: actions/cache@v2
-        id: bundler-cache
-        with:
-          path: vendor/bundle
-          key: ${{ runner.os }}-gem-${{ hashFiles('**/Gemfile.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-gem-
-
-      - name: Setup gems
-        run: bundle install --jobs 4
+      - name: Lint English locale
+        if: matrix.build_type == 'backend'
+        run: bundle exec ruby script/i18n_lint.rb "plugins/${{ github.event.repository.name }}/locales/{client,server}.en.yml"
 
       - name: Get yarn cache directory
         id: yarn-cache-dir
diff --git a/assets/javascripts/admin/templates/modal/admin-plugins-chat-channel-error.hbs b/assets/javascripts/admin/templates/modal/admin-plugins-chat-channel-error.hbs
index 3c0cea7..dec200d 100644
--- a/assets/javascripts/admin/templates/modal/admin-plugins-chat-channel-error.hbs
+++ b/assets/javascripts/admin/templates/modal/admin-plugins-chat-channel-error.hbs
@@ -1,4 +1,4 @@
 {{#d-modal-body id="chat_integration_error_modal"}}
-    <h4>{{i18n model.error_key}}</h4>
-    <pre>{{model.error_info}}</pre>
-{{/d-modal-body}}
\ No newline at end of file
+  <h4>{{i18n model.error_key}}</h4>
+  <pre>{{model.error_info}}</pre>
+{{/d-modal-body}}
diff --git a/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-channel.hbs b/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-channel.hbs
index 1b3a3df..b769f62 100644
--- a/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-channel.hbs
+++ b/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-channel.hbs
@@ -2,54 +2,58 @@
   <div>
     <form {{action "save" on="submit"}}>
       <table>
-
-        <tr class="input">
-          <td class="label"><label for='provider'>{{i18n "chat_integration.edit_channel_modal.provider"}}</label></td>
-          <td>
-            {{i18n (concat 'chat_integration.provider.' model.channel.provider '.title')}}
-          </td>
-        </tr>
-        <tr class="chat-instructions">
-          <td></td>
-          <td></td>
-        </tr>
-
-        {{#each model.provider.channel_parameters as |param|}}
+        <tbody>
           <tr class="input">
-            <td class="label"><label for='param-{{param.key}}'>{{i18n (concat 'chat_integration.provider.' model.channel.provider '.param.' param.key '.title')}}</label></td>
+            <td class="label"><label for="provider">{{i18n "chat_integration.edit_channel_modal.provider"}}</label></td>
             <td>
-              {{text-field
-                name=(concat 'param-' param.key)
-                value=(mut (get model.channel.data param.key))
-                }}
-
-              &nbsp;
-              {{#if (get model.channel.data param.key)}}
-                {{input-tip validation=(get paramValidation param.key)}}
-              {{/if}}
+              {{i18n (concat "chat_integration.provider." model.channel.provider ".title")}}
             </td>
           </tr>
+
           <tr class="chat-instructions">
             <td></td>
-            <td><label>{{i18n (concat 'chat_integration.provider.' model.channel.provider '.param.' param.key '.help')}}</label></td>
+            <td></td>
           </tr>
-        {{/each}}
-      </table>
 
+          {{#each model.provider.channel_parameters as |param|}}
+            <tr class="input">
+              <td class="label"><label for="param-{{param.key}}">{{i18n (concat "chat_integration.provider." model.channel.provider ".param." param.key ".title")}}</label></td>
+              <td>
+                {{text-field
+                  name=(concat "param-" param.key)
+                  value=(mut (get model.channel.data param.key))
+                }}
+
+                &nbsp;
+                {{#if (get model.channel.data param.key)}}
+                  {{input-tip validation=(get paramValidation param.key)}}
+                {{/if}}
+              </td>
+            </tr>
+
+            <tr class="chat-instructions">
+              <td></td>
+              <td><label>{{i18n (concat "chat_integration.provider." model.channel.provider ".param." param.key ".help")}}</label></td>
+            </tr>
+          {{/each}}
+        </tbody>
+      </table>
     </form>
   </div>
 {{/d-modal-body}}
 
 <div class="modal-footer">
   {{d-button id="save-channel"
-      class='btn-primary btn-large'
-      action="save"
-      title="chat_integration.edit_channel_modal.save"
-      label="chat_integration.edit_channel_modal.save"
-      disabled=saveDisabled}}
+    class="btn-primary btn-large"
+    action="save"
+    title="chat_integration.edit_channel_modal.save"
+    label="chat_integration.edit_channel_modal.save"
+    disabled=saveDisabled
+  }}
 
   {{d-button class="btn-large"
-      action="cancel"
-      title="chat_integration.edit_channel_modal.cancel"
-      label="chat_integration.edit_channel_modal.cancel"}}
+    action="cancel"
+    title="chat_integration.edit_channel_modal.cancel"
+    label="chat_integration.edit_channel_modal.cancel"
+  }}
 </div>
diff --git a/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-rule.hbs b/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-rule.hbs
index d0581de..2fe03b5 100644
--- a/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-rule.hbs
+++ b/assets/javascripts/admin/templates/modal/admin-plugins-chat-edit-rule.hbs
@@ -2,110 +2,119 @@
   <div>
     <form {{action "save" on="submit"}}>
       <table>
-
-        <tr class="input">
-          <td class="label"><label for='provider'>{{i18n "chat_integration.edit_rule_modal.provider"}}</label></td>
-          <td>
-            {{i18n (concat 'chat_integration.provider.' model.channel.provider '.title')}}
-          </td>
-        </tr>
-        <tr class="chat-instructions">
-          <td></td>
-          <td></td>
-        </tr>
-
-        <tr class="input">
-          <td class="label"><label for='channel'>{{i18n "chat_integration.edit_rule_modal.channel"}}</label></td>
-          <td>
-            {{channel-data provider=model.provider channel=model.channel}}
-          </td>
-        </tr>
-        <tr class="chat-instructions">
-          <td></td>
-          <td></td>
-        </tr>
-
-        <tr class="input">
-          <td class="label"><label for='filter'>{{i18n "chat_integration.edit_rule_modal.type"}}</label></td>
-          <td>
-            {{combo-box name="type" content=model.rule.available_types value=model.rule.type}}
-          </td>
-        </tr>
-        <tr class="chat-instructions">
-          <td></td>
-          <td><label>{{i18n 'chat_integration.edit_rule_modal.instructions.type'}}</label></td>
-        </tr>
-
-        <tr class="input">
-          <td class="label"><label for='filter'>{{i18n "chat_integration.edit_rule_modal.filter"}}</label></td>
-          <td>
-            {{combo-box name="filter" content=model.rule.available_filters value=model.rule.filter}}
-          </td>
-        </tr>
-        <tr class="chat-instructions">
-          <td></td>
-          <td><label>{{i18n 'chat_integration.edit_rule_modal.instructions.filter'}}</label></td>
-        </tr>
-
-        {{#if showCategory}}
+        <tbody>
           <tr class="input">
-            <td class="label"><label for='category'>{{i18n "chat_integration.edit_rule_modal.category"}}</label></td>
+            <td class="label"><label for="provider">{{i18n "chat_integration.edit_rule_modal.provider"}}</label></td>
             <td>
-              {{category-chooser
-                name="category"
-                value=model.rule.category_id
-                rootNoneLabel="chat_integration.all_categories"
-                rootNone=true
-                overrideWidths=false}}
+              {{i18n (concat "chat_integration.provider." model.channel.provider ".title")}}
             </td>
           </tr>
+
           <tr class="chat-instructions">
             <td></td>
-            <td><label>{{i18n 'chat_integration.edit_rule_modal.instructions.category'}}</label></td>
+            <td></td>
           </tr>
-        {{else}}
+
           <tr class="input">
-            <td class="label"><label for='group'>{{i18n "chat_integration.edit_rule_modal.group"}}</label></td>
+            <td class="label"><label for="channel">{{i18n "chat_integration.edit_rule_modal.channel"}}</label></td>
             <td>
-              {{combo-box content=model.groups valueAttribute="id" value=model.rule.group_id none="chat_integration.choose_group"}}
+              {{channel-data provider=model.provider channel=model.channel}}
             </td>
           </tr>
+
           <tr class="chat-instructions">
             <td></td>
-            <td><label>{{i18n 'chat_integration.edit_rule_modal.instructions.group'}}</label></td>
+            <td></td>
           </tr>
-        {{/if}}
 
-        {{#if siteSettings.tagging_enabled}}
           <tr class="input">
-            <td class="label"><label for='tags'>{{i18n "chat_integration.edit_rule_modal.tags"}}</label></td>
+            <td class="label"><label for="filter">{{i18n "chat_integration.edit_rule_modal.type"}}</label></td>
             <td>
-              {{tag-chooser placeholderKey="chat_integration.all_tags" name="tags" tags=model.rule.tags everyTag=true }}
+              {{combo-box name="type" content=model.rule.available_types value=model.rule.type}}
             </td>
           </tr>
+
           <tr class="chat-instructions">
             <td></td>
-            <td><label>{{i18n 'chat_integration.edit_rule_modal.instructions.tags'}}</label></td>
+            <td><label>{{i18n "chat_integration.edit_rule_modal.instructions.type"}}</label></td>
           </tr>
-        {{/if}}
 
+          <tr class="input">
+            <td class="label"><label for="filter">{{i18n "chat_integration.edit_rule_modal.filter"}}</label></td>
+            <td>
+              {{combo-box name="filter" content=model.rule.available_filters value=model.rule.filter}}
+            </td>
+          </tr>
+
+          <tr class="chat-instructions">
+            <td></td>
+            <td><label>{{i18n "chat_integration.edit_rule_modal.instructions.filter"}}</label></td>
+          </tr>
+
+          {{#if showCategory}}
+            <tr class="input">
+              <td class="label"><label for="category">{{i18n "chat_integration.edit_rule_modal.category"}}</label></td>
+              <td>
+                {{category-chooser
+                  name="category"
+                  value=model.rule.category_id
+                  rootNoneLabel="chat_integration.all_categories"
+                  rootNone=true
+                  overrideWidths=false
+                }}
+              </td>
+            </tr>
+
+            <tr class="chat-instructions">
+              <td></td>
+              <td><label>{{i18n "chat_integration.edit_rule_modal.instructions.category"}}</label></td>
+            </tr>
+          {{else}}
+            <tr class="input">
+              <td class="label"><label for="group">{{i18n "chat_integration.edit_rule_modal.group"}}</label></td>
+              <td>
+                {{combo-box content=model.groups valueAttribute="id" value=model.rule.group_id none="chat_integration.choose_group"}}
+              </td>
+            </tr>
+
+            <tr class="chat-instructions">
+              <td></td>
+              <td><label>{{i18n "chat_integration.edit_rule_modal.instructions.group"}}</label></td>
+            </tr>
+          {{/if}}
+
+          {{#if siteSettings.tagging_enabled}}
+            <tr class="input">
+              <td class="label"><label for="tags">{{i18n "chat_integration.edit_rule_modal.tags"}}</label></td>
+              <td>
+                {{tag-chooser placeholderKey="chat_integration.all_tags" name="tags" tags=model.rule.tags everyTag=true }}
+              </td>
+            </tr>
+
+            <tr class="chat-instructions">
+              <td></td>
+              <td><label>{{i18n "chat_integration.edit_rule_modal.instructions.tags"}}</label></td>
+            </tr>
+          {{/if}}
+        </tbody>
       </table>
-
     </form>
   </div>
 {{/d-modal-body}}
 
 <div class="modal-footer">
   {{d-button id="save-rule"
-    class='btn-primary btn-large'
+    class="btn-primary btn-large"
     action="save"
     actionParam=model.rule
     title="chat_integration.edit_rule_modal.save"
     label="chat_integration.edit_rule_modal.save"
-    disabled=saveDisabled}}
+    disabled=saveDisabled
+  }}
 
   {{d-button class="btn-large"
-      action=(route-action "closeModal")
-      title="chat_integration.edit_rule_modal.cancel"
-      label="chat_integration.edit_rule_modal.cancel"}}
+    action=(route-action "closeModal")
+    title="chat_integration.edit_rule_modal.cancel"
+    label="chat_integration.edit_rule_modal.cancel"
+  }}
 </div>
diff --git a/assets/javascripts/admin/templates/modal/admin-plugins-chat-test.hbs b/assets/javascripts/admin/templates/modal/admin-plugins-chat-test.hbs
index 16da474..e2e95d1 100644
--- a/assets/javascripts/admin/templates/modal/admin-plugins-chat-test.hbs
+++ b/assets/javascripts/admin/templates/modal/admin-plugins-chat-test.hbs
@@ -2,12 +2,14 @@
   <div>
     <form {{action "send" on="submit"}}>
       <table>
-        <tr class="input">
-          <td class="label"><label for='channel'>{{i18n "chat_integration.test_modal.topic"}}</label></td>
-          <td>
-            {{choose-topic selectedTopicId=model.topic_id}}
-          </td>
-        </tr>
+        <tbody>
+          <tr class="input">
+            <td class="label"><label for="channel">{{i18n "chat_integration.test_modal.topic"}}</label></td>
+            <td>
+              {{choose-topic selectedTopicId=model.topic_id}}
+            </td>
+          </tr>
+        </tbody>
       </table>
     </form>
   </div>
@@ -17,16 +19,18 @@
   {{#conditional-loading-spinner condition=loading}}
     {{d-button
       id="send-test"
-      class='btn-primary btn-large'
+      class="btn-primary btn-large"
       action=(action "send")
       title="chat_integration.test_modal.send"
       label="chat_integration.test_modal.send"
-      disabled=sendDisabled}}
+      disabled=sendDisabled
+    }}
 
     {{d-button
       class="btn-large"
       action=(route-action "closeModal")
       title="chat_integration.test_modal.close"
-      label="chat_integration.test_modal.close"}}
+      label="chat_integration.test_modal.close"
+    }}
   {{/conditional-loading-spinner}}
 </div>
diff --git a/assets/javascripts/discourse/templates/admin/plugins-chat-provider.hbs b/assets/javascripts/discourse/templates/admin/plugins-chat-provider.hbs
index ad27031..2f18f7c 100644
--- a/assets/javascripts/discourse/templates/admin/plugins-chat-provider.hbs
+++ b/assets/javascripts/discourse/templates/admin/plugins-chat-provider.hbs
@@ -1,6 +1,6 @@
 {{#if anyErrors}}
   <div class="error">
-    {{d-icon 'exclamation-triangle'}}
+    {{d-icon "exclamation-triangle"}}
     <span class="error-message">{{i18n "chat_integration.channels_with_errors"}}</span>
   </div>
 {{/if}}
@@ -14,7 +14,8 @@
     test=(action "testChannel")
     createRule=(action "createRule")
     editRuleWithChannel=(action "editRuleWithChannel")
-    showError=(action "showError")}}
+    showError=(action "showError")
+  }}
 {{/each}}
 
 <div class="table-footer">
@@ -25,6 +26,7 @@
       actionParam=model.provider
       icon="plus"
       title="chat_integration.create_channel"
-      label="chat_integration.create_channel"}}
+      label="chat_integration.create_channel"
+    }}
   </div>
 </div>
diff --git a/assets/javascripts/discourse/templates/admin/plugins-chat.hbs b/assets/javascripts/discourse/templates/admin/plugins-chat.hbs
index c3aa326..bc578dc 100644
--- a/assets/javascripts/discourse/templates/admin/plugins-chat.hbs
+++ b/assets/javascripts/discourse/templates/admin/plugins-chat.hbs
@@ -4,9 +4,10 @@
       <ul class="nav nav-pills">
         {{#each model as |provider|}}
           {{nav-item
-            route='adminPlugins.chat.provider'
+            route="adminPlugins.chat.provider"
             routeParam=provider.name
-            label=(concat 'chat_integration.provider.' provider.name '.title')}}
+            label=(concat "chat_integration.provider." provider.name ".title")
+          }}
         {{/each}}
       </ul>
     </div>
@@ -16,7 +17,8 @@
         action=(route-action "showSettings")
         icon="cog"
         title="chat_integration.settings"
-        label="chat_integration.settings"}}
+        label="chat_integration.settings"
+      }}
     </div>
   </div>
 
diff --git a/assets/javascripts/discourse/templates/components/channel-data.hbs b/assets/javascripts/discourse/templates/components/channel-data.hbs
index 6f034a3..b88d089 100644
--- a/assets/javascripts/discourse/templates/components/channel-data.hbs
+++ b/assets/javascripts/discourse/templates/components/channel-data.hbs
@@ -1,9 +1,9 @@
 {{#each provider.channel_parameters as |param|}}
   {{#unless param.hidden}}
-    <span class='field-name'>
-      {{i18n (concat 'chat_integration.provider.' channel.provider '.param.' param.key '.title')}}:
+    <span class="field-name">
+      {{i18n (concat "chat_integration.provider." channel.provider ".param." param.key ".title")}}:
     </span>
-    <span class='field-value'>{{get channel.data param.key}}</span>
-    <br/>
+    <span class="field-value">{{get channel.data param.key}}</span>
+    <br>
   {{/unless}}
 {{/each}}
diff --git a/assets/javascripts/discourse/templates/components/channel-details.hbs b/assets/javascripts/discourse/templates/components/channel-details.hbs
index 725fc16..ccfda7b 100644
--- a/assets/javascripts/discourse/templates/components/channel-details.hbs
+++ b/assets/javascripts/discourse/templates/components/channel-details.hbs
@@ -1,11 +1,12 @@
-<div class='channel-header'>
-  <div class='pull-right'>
+<div class="channel-header">
+  <div class="pull-right">
     {{d-button
       action=editChannel
       actionParam=channel
       icon="pencil-alt"
       title="chat_integration.edit_channel"
-      label="chat_integration.edit_channel"}}
+      label="chat_integration.edit_channel"
+    }}
 
     {{d-button
       action=test
@@ -13,56 +14,64 @@
       icon="rocket"
       title="chat_integration.test_channel"
       label="chat_integration.test_channel"
-      class="btn-chat-test"}}
+      class="btn-chat-test"
+    }}
 
     {{d-button
-      class='cancel'
+      class="cancel"
       action=(action "deleteChannel")
       actionParam=channel
       icon="trash-alt"
       title="chat_integration.delete_channel"
-      label="chat_integration.delete_channel"}}
+      label="chat_integration.delete_channel"
+    }}
   </div>
 
-  <span class='channel-title'>
+  <span class="channel-title">
     {{#if channel.error_key}}
       {{d-button
         action=showError
         actionParam=channel
         class="delete btn-danger"
-        icon="exclamation-triangle"}}
+        icon="exclamation-triangle"
+      }}
     {{/if}}
 
     {{channel-data provider=provider channel=channel}}
   </span>
 </div>
 
-<div class='channel-body'>
+<div class="channel-body">
   <table>
-    <tr>
-      <th>{{i18n "chat_integration.rule_table.filter"}}</th>
-      <th>{{i18n "chat_integration.rule_table.category"}}</th>
+    <thead>
+      <tr>
+        <th>{{i18n "chat_integration.rule_table.filter"}}</th>
+        <th>{{i18n "chat_integration.rule_table.category"}}</th>
 
-      {{#if siteSettings.tagging_enabled}}
-        <th>{{i18n "chat_integration.rule_table.tags"}}</th>
-      {{/if}}
+        {{#if siteSettings.tagging_enabled}}
+          <th>{{i18n "chat_integration.rule_table.tags"}}</th>
+        {{/if}}
 
-      <th></th>
-    </tr>
+        <th></th>
+      </tr>
+    </thead>
 
-    {{#each channel.rules as |rule|}}
-      {{rule-row rule=rule edit=(action "editRule") refresh=refresh}}
-    {{/each}}
+    <tbody>
+      {{#each channel.rules as |rule|}}
+        {{rule-row rule=rule edit=(action "editRule") refresh=refresh}}
+      {{/each}}
+    </tbody>
   </table>
 </div>
 
-<div class='channel-footer'>
-  <div class='pull-right'>
-   {{d-button
+<div class="channel-footer">
+  <div class="pull-right">
+    {{d-button
       action=createRule
       actionParam=channel
       icon="plus"
       title="chat_integration.create_rule"
-      label="chat_integration.create_rule"}}
+      label="chat_integration.create_rule"
+    }}
   </div>
 </div>
diff --git a/assets/javascripts/discourse/templates/components/rule-row.hbs b/assets/javascripts/discourse/templates/components/rule-row.hbs
index 4e2b2c8..93e02d7 100644
--- a/assets/javascripts/discourse/templates/components/rule-row.hbs
+++ b/assets/javascripts/discourse/templates/components/rule-row.hbs
@@ -16,7 +16,6 @@
   {{/if}}
 </td>
 
-
 {{#if siteSettings.tagging_enabled}}
   <td>
     {{#if rule.tags}}
@@ -33,12 +32,14 @@
     actionParam=rule
     icon="pencil-alt"
     class="edit"
-    title="chat_integration.rule_table.edit_rule"}}
+    title="chat_integration.rule_table.edit_rule"
+  }}
 
   {{d-button
     action=(action "delete")
     actionParam=rule
     icon="far-trash-alt"
     class="delete"
-    title="chat_integration.rule_table.delete_rule"}}
+    title="chat_integration.rule_table.delete_rule"
+  }}
 </td>