muteonstart not visible when muteonstart_editable is set.

The setting muteonstart is not shown even when muteonstart_editable is set. To be shown in the mod_form one of these must be set: voicebridge_editable, waitformoderator_editable, userlimit_editable, recording_editable

The expected behavior is that muteonstart_editable should make the muteonstart on the modform visible.

Test:
1. Disable all of these settings: voicebridge_editable, waitformoderator_editable, userlimit_editable, recording_editable
2. enable muteonstart_editable
3. Edit or add an bbb instance and search for the section "Room settings" which does not exist.