79597: Fix tslint issue

src/app/thumbnail/thumbnail.component.spec.ts

@@ -5,8 +5,8 @@ import { Bitstream } from '../core/shared/bitstream.model';
 import { SafeUrlPipe } from '../shared/utils/safe-url-pipe';
 
 import { ThumbnailComponent } from './thumbnail.component';
-import { TranslateService } from '@ngx-translate/core';
 
+// tslint:disable-next-line:pipe-prefix
 @Pipe({ name: 'translate' })
 class MockTranslatePipe implements PipeTransform {
   transform(key: string): string {

src/app/thumbnail/thumbnail.component.ts

@@ -10,7 +10,7 @@ import { hasValue } from '../shared/empty.util';
 @Component({
   selector: 'ds-thumbnail',
   styleUrls: ['./thumbnail.component.scss'],
-  templateUrl: './thumbnail.component.html'
+  templateUrl: './thumbnail.component.html',
 })
 export class ThumbnailComponent implements OnInit {
   /**