Allow committee admin to also duplicate meetings from their own committee

[Elblinator]

needs to work OpenSlides/openslides-backend#2564
Wanted behaviour:
if the setting require_duplicate_from is true and if the user is a committee admin

• then while creating a new meeting the duplicate from field should be indicated as a required field (there should be a star and it should be in warn colour if empty)
• committee-detail-view: the duplicate option should be visible and selectable in the three dot menu from a single meeting

[Elblinator]

This changed behaviour should be true for every one (superadmin, orga admin and committee admin) and should be true regardless of the new setting require_duplicate_from

an additional requirement:

• while creating a new meeting the selector should only show the template meetings
• the titles from the different kinds of meetings should also be hidden