Export logo and labels select as ES6 modules

app/assets/javascripts/boards/components/board_sidebar.js

 /* eslint-disable comma-dangle, space-before-function-paren, no-new */
 /* global MilestoneSelect */
-/* global LabelsSelect */
 /* global Sidebar */
 import Vue from 'vue';
@@ -11,6 +10,7 @@ import Assignees from '../../sidebar/components/assignees/assignees';
 import DueDateSelectors from '../../due_date_select';
 import './sidebar/remove_issue';
 import IssuableContext from '../../issuable_context';
+import LabelsSelect from '../../labels_select';
 const Store = gl.issueBoards.BoardsStore;

app/assets/javascripts/dispatcher.js

@@ -3,7 +3,7 @@
 import IssuableIndex from './issuable_index';
 /* global Milestone */
 import IssuableForm from './issuable_form';
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 /* global MilestoneSelect */
 /* global NewBranchForm */
 /* global NotificationsForm */

app/assets/javascripts/init_issuable_sidebar.js

 /* eslint-disable no-new */
 /* global MilestoneSelect */
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 import IssuableContext from './issuable_context';
 /* global Sidebar */

app/assets/javascripts/init_legacy_filters.js

 /* eslint-disable no-new */
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 /* global MilestoneSelect */
 /* global SubscriptionSelect */

app/assets/javascripts/issuable_bulk_update_sidebar.js

 /* eslint-disable class-methods-use-this, no-new */
-/* global LabelsSelect */
 /* global MilestoneSelect */
 /* global SubscriptionSelect */
@@ -7,7 +6,7 @@ import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
 import './milestone_select';
 import issueStatusSelect from './issue_status_select';
 import './subscription_select';
-import './labels_select';
+import LabelsSelect from './labels_select';
 const HIDDEN_CLASS = 'hidden';
 const DISABLED_CONTENT_CLASS = 'disabled-content';

app/assets/javascripts/logo.js

-/* eslint-disable func-names, space-before-function-paren, prefer-arrow-callback */
-
-(function() {
-  window.addEventListener('beforeunload', function() {
+export default function initLogoAnimation() {
+  window.addEventListener('beforeunload', () => {
     $('.tanuki-logo').addClass('animate');
   });
-}).call(window);
+}

app/assets/javascripts/main.js

@@ -55,11 +55,10 @@ import './gl_field_errors';
 import './gl_form';
 import initTodoToggle from './header';
 import initImporterStatus from './importer_status';
-import './labels_select';
 import './layout_nav';
 import LazyLoader from './lazy_loader';
 import './line_highlighter';
-import './logo';
+import initLogoAnimation from './logo';
 import './merge_request';
 import './merge_request_tabs';
 import './milestone';
@@ -134,6 +133,7 @@ $(function () {
   initBreadcrumbs();
   initImporterStatus();
   initTodoToggle();
+  initLogoAnimation();
   // Set the default path for all cookies to GitLab's root directory
   Cookies.defaults.path = gon.relative_url_root || '/';

spec/javascripts/labels_issue_sidebar_spec.js

 /* eslint-disable no-new */
 import IssuableContext from '~/issuable_context';
-/* global LabelsSelect */
+import LabelsSelect from '~/labels_select';
 import '~/gl_dropdown';
 import 'select2';
 import '~/api';
 import '~/create_label';
 import '~/users_select';
-import '~/labels_select';
 (() => {
   let saveLabelCount = 0;