message: fix: response samples doesn't show only text/plain (fixes
diff: </div>
  </ng-template>
  -<tabs *ngIf="xmlSample; else jsonSnippet">
  +<tabs *ngIf="xmlSample || textSample; else jsonSnippet">
  <tab tabTitle="JSON" *ngIf="sample">
  <ng-container *ngTemplateOutlet="jsonSnippet"></ng-container>
  </tab>
  