FIX: Missing translation for non-admin when editing a group.

https://meta.discourse.org/t/text-glitch-on-group-admin-page/77303

app/assets/javascripts/admin/templates/group.hbs

@@ -35,7 +35,7 @@
       <label for="owner-selector">{{i18n 'admin.groups.add_owners'}}</label>
 
       {{user-selector usernames=model.ownerUsernames
-          placeholderKey="admin.groups.selector_placeholder"
+          placeholderKey="groups.selector_placeholder"
           id="owner-selector"}}
 
       {{#if model.id}}

app/assets/javascripts/discourse/templates/components/group-members-input.hbs

@@ -16,7 +16,7 @@
 {{#unless model.automatic}}
   <div class="group-members-input-selector">
     {{user-selector usernames=model.usernames
-          placeholderKey="admin.groups.selector_placeholder"
+          placeholderKey="groups.selector_placeholder"
           id="member-selector"}}
 
     {{#if addButton}}

config/locales/client.en.yml

@@ -447,7 +447,7 @@ en:
       name: "Name"
       user_count: "Number of Members"
       bio: "About Group"
-      selector_placeholder: "Add members"
+      selector_placeholder: "enter username"
       owner: "owner"
       index:
         title: "Groups"
@@ -2805,7 +2805,6 @@ en:
         edit: "Edit Groups"
         refresh: "Refresh"
         new: "New"
-        selector_placeholder: "enter username"
         about: "Edit your group membership and names here"
         group_members: "Group members"
         delete: "Delete"