src/app/dialogs/logout/logout.component.html

<div class="logout-dialog">
  <div class="center">
    <img src="assets/img/logo_openkonsequenz.png">
    <h3>Wollen Sie sich abmelden?</h3>
  </div>
  <div class="center-margin">
    <button class="btn btn-primary" (click)="logout()" autofocus>Ja</button>
    <button class="btn btn-primary" (click)="dialogRef.close()">Nein</button>
  </div>
</div>