Resolve "Various improvements"

Closes #196 (closed)

src/app/components/creator/content-list/content-list.component.html

@@ -34,16 +34,17 @@
     </mat-grid-list>
     <mat-divider></mat-divider>
     <mat-card-content>
-      <mat-expansion-panel *ngFor="let content of contents">
+      <mat-expansion-panel *ngFor="let content of contents; index as i">
         <mat-expansion-panel-header>
           <mat-panel-title>
-              {{ content.subject }}
+              {{ labels[i] }}
           </mat-panel-title>
-          <button mat-icon-button color="accent" (click)="editContent(content);$event.stopPropagation();">
+          <button mat-icon-button color="accent" (click)="editContent(content);$event.stopPropagation();"
+                  class="editButton">
             <mat-icon>create</mat-icon>
           </button>
           <button mat-icon-button color="warn" (click)="deleteContent(content);$event.stopPropagation();"
-                  class="deleteButton">
+                  class="deleteButton editButton">
             <mat-icon>delete_forever</mat-icon>
           </button>
         </mat-expansion-panel-header>