message: use correct version string
diff: <div *ngIf="page === 1">
  <span class="update-heading">downloading update ...</span>
  <div class="update-progress-bar__wrapper">
  - <div
  - class="update-progress-bar"
  - [ngStyle]="{ width: updateProgress.percentage / 2 + 'vw' }"
  - id="updateDownloadProgress"
  - >
  + <div class="update-progress-bar" [ngStyle]="{ width: updateProgress.percentage / 2 + 'vw' }"
  + id="updateDownloadProgress">
  {{ updateProgress.speed }} MB/s&nbsp;
  </div>
  </div>
  <span class="update-notice">this might take a while</span>
  </div>
  <div *ngIf="page === 3">
  - <span class="update-heading">v{{ service.version }} installed</span>
  + <span class="update-heading">v{{ service.latestVersion }} installed</span>
  <span class="update-restart">would you like to reboot now to activate the latest version?</span>
  <div class="update-restart-button__wrapper">
  <button class="update-restart-button update-restart-button__no" (click)="closeUpdateWindow()">no</button>
  