Cleanup frontend comment service & other code

[ci skip]

src-ui/src/app/components/document-detail/document-detail.component.html

@@ -174,7 +174,6 @@
                     <ng-template ngbNavContent>
                         <app-document-comments [documentId]="documentId"></app-document-comments>
                     </ng-template>
-
                 </li>
             </ul>
 

src-ui/src/app/components/document-detail/document-detail.component.ts

@@ -274,7 +274,6 @@ export class DocumentDetailComponent
           this.suggestions = null
         },
       })
-
     this.title = this.documentTitlePipe.transform(doc.title)
     this.documentForm.patchValue(doc)
   }