update tslint -> eslint

src/app/widget-modules/components/add-song/add-song.component.html

@@ -3,9 +3,13 @@
     <mat-label>Lied hinzufügen...</mat-label>
     <mat-select (selectionChange)="onAddSongSelectionChanged($event)">
       <mat-option>
-        <ngx-mat-select-search [formControl]="filteredSongsControl"></ngx-mat-select-search>
+        <ngx-mat-select-search
+          [formControl]="filteredSongsControl"
+        ></ngx-mat-select-search>
       </mat-option>
-      <mat-option *ngFor="let song of filteredSongs()" [value]="song.id">{{song.title}}</mat-option>
+      <mat-option *ngFor="let song of filteredSongs()" [value]="song.id">{{
+        song.title
+        }}</mat-option>
     </mat-select>
   </mat-form-field>
 </div>