Summary

The name "Domain administrators" should be changed and replaced in the whole interface. The new name should be something like "Domain managers".

Motivation

Currently, whenever there are discussions, requests, documentations, and so on, it is not clear whether the terms "admin" or "administrator" refer to the global administrators (of the mailcow server) or the domain administrators. The aim of this change is to make the differences between the two much clearer in all future written or oral exchanges

Additional context

No response