DEV: Ember linting - disallow Ember.* variable usage (#8782)

app/assets/javascripts/admin/controllers/admin-api-keys-index.js.es6

@@ -1,6 +1,7 @@
 import { popupAjaxError } from "discourse/lib/ajax-error";
+import Controller from "@ember/controller";
 
-export default Ember.Controller.extend({
+export default Controller.extend({
   actions: {
     revokeKey(key) {
       key.revoke().catch(popupAjaxError);

app/assets/javascripts/admin/controllers/admin-api-keys-new.js.es6

@@ -1,7 +1,8 @@
 import discourseComputed from "discourse-common/utils/decorators";
+import Controller from "@ember/controller";
 import { popupAjaxError } from "discourse/lib/ajax-error";
 
-export default Ember.Controller.extend({
+export default Controller.extend({
   userModes: [
     { id: "all", name: I18n.t("admin.api.all_users") },
     { id: "single", name: I18n.t("admin.api.single_user") }

app/assets/javascripts/admin/controllers/admin-api-keys-show.js.es6

@@ -1,8 +1,10 @@
 import { bufferedProperty } from "discourse/mixins/buffered-content";
+import Controller from "@ember/controller";
+import { isEmpty } from "@ember/utils";
 import { popupAjaxError } from "discourse/lib/ajax-error";
 import { empty } from "@ember/object/computed";
 
-export default Ember.Controller.extend(bufferedProperty("model"), {
+export default Controller.extend(bufferedProperty("model"), {
   isNew: empty("model.id"),
 
   actions: {
@@ -21,7 +23,7 @@ export default Ember.Controller.extend(bufferedProperty("model"), {
 
     cancel() {
       const id = this.get("userField.id");
-      if (Ember.isEmpty(id)) {
+      if (isEmpty(id)) {
         this.destroyAction(this.userField);
       } else {
         this.rollbackBuffer();

app/assets/javascripts/admin/controllers/admin-badges-show.js.es6

@@ -1,10 +1,10 @@
 import discourseComputed, { observes } from "discourse-common/utils/decorators";
 import { reads } from "@ember/object/computed";
-import { inject } from "@ember/controller";
-import Controller from "@ember/controller";
+import Controller, { inject } from "@ember/controller";
 import { popupAjaxError } from "discourse/lib/ajax-error";
 import { bufferedProperty } from "discourse/mixins/buffered-content";
 import { propertyNotEqual } from "discourse/lib/computed";
+import { run } from "@ember/runloop";
 
 export default Controller.extend(bufferedProperty("model"), {
   adminBadges: inject(),
@@ -23,7 +23,7 @@ export default Controller.extend(bufferedProperty("model"), {
     // this is needed because the model doesnt have default values
     // and as we are using a bufferedProperty it's not accessible
     // in any other way
-    Ember.run.next(() => {
+    run.next(() => {
       if (this.model) {
         if (!this.model.badge_type_id) {
           this.model.set(

app/assets/javascripts/admin/controllers/admin-customize-themes-show.js.es6

@@ -13,6 +13,7 @@ import { popupAjaxError } from "discourse/lib/ajax-error";
 import showModal from "discourse/lib/show-modal";
 import ThemeSettings from "admin/models/theme-settings";
 import { THEMES, COMPONENTS } from "admin/models/theme";
+import EmberObject from "@ember/object";
 
 const THEME_UPLOAD_VAR = 2;
 
@@ -67,7 +68,7 @@ export default Controller.extend({
 
   @discourseComputed("model.parentThemes.[]")
   relativesSelectorSettingsForComponent() {
-    return Ember.Object.create({
+    return EmberObject.create({
       list_type: "compact",
       type: "list",
       preview: null,
@@ -85,7 +86,7 @@ export default Controller.extend({
 
   @discourseComputed("model.parentThemes.[]")
   relativesSelectorSettingsForTheme() {
-    return Ember.Object.create({
+    return EmberObject.create({
       list_type: "compact",
       type: "list",
       preview: null,