message: refactor(service-worker): formatting of index.ts
  Fixed formatting of index.ts.
  PR Close
diff: * found in the LICENSE file at https://angular.io/license
  */
  -export {UnrecoverableStateEvent, UpdateActivatedEvent, UpdateAvailableEvent, VersionDetectedEvent, VersionEvent, VersionInstallationFailedEvent, VersionReadyEvent, NoNewVersionDetectedEvent} from './low_level';
  +export {NoNewVersionDetectedEvent, UnrecoverableStateEvent, UpdateActivatedEvent, UpdateAvailableEvent, VersionDetectedEvent, VersionEvent, VersionInstallationFailedEvent, VersionReadyEvent} from './low_level';
  export {ServiceWorkerModule, SwRegistrationOptions} from './module';
  export {SwPush} from './push';
  export {SwUpdate} from './update';
  