BUG: Empty slide at the end of question lane (Monitoring set up, preview)

When entering the preview mode, each question lane has an empty rcc-slide component at the end. That's where the button to add further questions was in edit mode.

Expected behavior

The whole rcc-slide should be remove not only the button on the slide

Possible solution

Move the *ngIf from the button to the respective rcc-slide:)