[MainUI] Missing plausibility check at „Add Items from Thing“ allows unpermissible circular group reference (recursion)

[FranzSchi]

The problem

In the Add item for Thing dialog the Parent and the Equipment can be maintened the same this immediately creates a recursion.

Expected behavior

Please check if they are identlical and do not allow to safe
Or even don’t allow that the Parent is below the Equipment

Steps to reproduce

Open a thing
Navigate to the Channels tab
then press „Add Equipment to Model“ at the bottom
In the new Dialog select for both Equipment and Parent Group the same value

Your environment

OH 5.2 M5
Debutant BookWork as host
Running in Docker 
X64