Hide BBB button for users without permissions

[ferfebles]

Is your feature request related to a problem? Please describe.
We are using Nextcloud in a school environment. We would like to show the BBB button only for teachers, but not for students.

Describe the solution you'd like
Either do not show the BBB button for users without permissions to create a room or allow for the 'All Users' group name to be deleted in 'Restrictions' and show the button only for the configured groups.

[sualko]

Thanks for your request. Since rooms can be shared with everyone, we can't just not show the button if the user is not able to create a room. Looking this up in the db would require a request on every nc request which I don't want to add for performance reasons. You would need another option in the settings, but this would always require some db queries. Therefore this enhancement has no high priority for me.