Follow-up from "Resolve "creator home screen - room logic (room)"" - deletion

The following discussion from !68 (merged) should be addressed:

• @dndn43 started a discussion:

  @tlnz55 Please use MatDialog for confirmation as this view change bypasses the browser history. It appears to be a new page but as it is just a new block navigating back leads to the list view (unexpected behaviour).

This issue will create a new deletion-component - later in another issue we will create a modification-component