BucketBar: convert to named export

src/annotator/bucket-bar.js

@@ -14,7 +14,7 @@ import { computeBuckets } from './util/buckets';
  *
  * @implements {Destroyable}
  */
-export default class BucketBar {
+export class BucketBar {
   /**
    * @param {HTMLElement} container
    * @param {object} options

src/annotator/sidebar.js

@@ -6,7 +6,7 @@ import { ListenerCollection } from '../shared/listener-collection';
 import { PortRPC } from '../shared/messaging';
 
 import { annotationCounts } from './annotation-counts';
-import BucketBar from './bucket-bar';
+import { BucketBar } from './bucket-bar';
 import { createAppConfig } from './config/app';
 import { features } from './features';
 import sidebarTrigger from './sidebar-trigger';

src/annotator/test/bucket-bar-test.js

-import BucketBar, { $imports } from '../bucket-bar';
+import { BucketBar, $imports } from '../bucket-bar';
 
 describe('BucketBar', () => {
   let bucketBars;

src/annotator/test/sidebar-test.js

@@ -155,7 +155,7 @@ describe('Sidebar', () => {
     $imports.$mock({
       '../shared/frame-error-capture': { sendErrorsTo: fakeSendErrorsTo },
       '../shared/messaging': { PortRPC: FakePortRPC },
-      './bucket-bar': { default: FakeBucketBar },
+      './bucket-bar': { BucketBar: FakeBucketBar },
       './config/app': { createAppConfig: fakeCreateAppConfig },
       './toolbar': {
         ToolbarController: FakeToolbarController,