Fix: OXUIB-2713: Appointment details stay open after selecting other calendar week

Implementation notes

Bug introduced by https://jira.open-xchange.com/browse/OXUIB-1143 .

A removed element loses its parent hiearchy. In most cases, the document.contains(...) handles it properly, some exceptions can occur. Solution: add another list that handles certain elements that trigger a close.

Closes OXUIB-2713