Migrate from namespace to import

assets/javascripts/discourse/controllers/admin-wizards-logs.js.es6

@@ -3,8 +3,9 @@ import { popupAjaxError } from 'discourse/lib/ajax-error';
 import { ajax } from 'discourse/lib/ajax';
 import { notEmpty } from "@ember/object/computed";
 import CustomWizardLogs from '../models/custom-wizard-logs';
+import Controller from "@ember/controller";
 
-export default Ember.Controller.extend({
+export default Controller.extend({
   refreshing: false,
   hasLogs: notEmpty("logs"),
   page: 0,