message: Refactor ProfilePicUpload
  Adjusted the cancel button of the upload dialog.
diff: <mat-icon>file_upload</mat-icon>
  Upload picture
  </button>
  + <button mat-raised-button (click)="cancel()">Cancel</button>
  </div>
  </div>
  </mat-tab>
  <mat-icon>file_upload</mat-icon>
  Upload picture
  </button>
  + <button mat-raised-button (click)="cancel()">Cancel</button>
  </div>
  </mat-tab>
  - <button mat-raised-button (click)="cancel()">Cancel</button>
  </mat-tab-group>
  <div *ngIf="showProgressBar">
  <h2>Uploading...</h2>
  