Audit docs for features added to UI cluster settings screenshot

[akeller]

Automatic cluster updates and enforce user task restrictions were added to the screenshot and may not be reflected in the surrounding docs. Let's make sure the docs are updated and anything in the backlog on this topic is closed or addressed.

Looks like some additional features were added to this UI. I will create an issue to review the docs and backlog to see if we need to add anything (or close an issue!).

Originally posted by @akeller in https://github.com/camunda/camunda-docs/pull/3683#discussion_r1570999399