### What?
This PR fixes an issue where a deleted relationship entry would lead to
a runtime error if the user clicked on the edit button in ui due to not
having a `doc` available in `handleServerFunction`.
### Why?
To prevent runtime errors during expected usage.
### How?
By hiding the edit button in entries that have been deleted. This is
done for entries where the user does not have read access already.
Fixes#11004
Before:
[Editing---Post-userdelete--before--Payload.webm](https://github.com/user-attachments/assets/33180eba-9be3-418f-92d2-3bad93e3dfae)
After:
[Editing---Post-userdelete--after--Payload.webm](https://github.com/user-attachments/assets/ba1a736b-3422-4fe0-93ae-7e8e6496d1bd)
cba5c7bcac