Remove some of the last few `fa-icon` helpers

app/assets/javascripts/discourse/widgets/embedded-post.js.es6

@@ -9,11 +9,11 @@ createWidget('post-link-arrow', {
   template: hbs`
     {{#if attrs.above}}
       <a class="post-info arrow" title={{i18n "topic.jump_reply_up"}}>
-        {{fa-icon "arrow-up"}}
+        {{d-icon "arrow-up"}}
       </a>
     {{else}}
       <a class="post-info arrow" title={{i18n "topic.jump_reply_down"}}>
-        {{fa-icon "arrow-down"}}
+        {{d-icon "arrow-down"}}
       </a>
     {{/if}}
   `,

app/assets/javascripts/discourse/widgets/private-message-map.js.es6

@@ -6,7 +6,7 @@ import hbs from 'discourse/widgets/hbs-compiler';
 
 createWidget('pm-remove-group-link', {
   tagName: 'a.remove-invited',
-  template: hbs`{{fa-icon "times"}}`,
+  template: hbs`{{d-icon "times"}}`,
 
   click() {
     bootbox.confirm(I18n.t("private_message_info.remove_allowed_group", {name: this.attrs.name}), (confirmed) => {
@@ -33,7 +33,7 @@ createWidget('pm-map-user-group', {
 
 createWidget('pm-remove-link', {
   tagName: 'a.remove-invited',
-  template: hbs`{{fa-icon "times"}}`,
+  template: hbs`{{d-icon "times"}}`,
 
   click() {
     bootbox.confirm(I18n.t("private_message_info.remove_allowed_user", {name: this.attrs.username}), (confirmed) => {

lib/javascripts/widget-hbs-compiler.js.es6

@@ -27,6 +27,7 @@ function mustacheValue(node, state) {
 
       break;
     case 'fa-icon':
+    case 'd-icon':
       state.helpersUsed.iconNode = true;
       let icon = node.params[0].value;
       return `__iN("${icon}")`;

test/javascripts/widgets/widget-test.js.es6

@@ -198,12 +198,12 @@ widgetTest('widget attaching', {
   }
 });
 
-widgetTest("handlebars fa-icon", {
+widgetTest("handlebars d-icon", {
   template: `{{mount-widget widget="hbs-icon-test" args=args}}`,
 
   beforeEach() {
     createWidget('hbs-icon-test', {
-      template: hbs`{{fa-icon "arrow-down"}}`
+      template: hbs`{{d-icon "arrow-down"}}`
     });
   },