Users should be able to select the group on the mobile app

When on a Desktop, a user access a room/activity that has groups enabled, even in "separated groups", if the user is enrolled in more than one group or has privileges to see all the groups (teachers and administrators) they are able to select from a drop-down menu the group they want to join.

In the mobile app, they go to the default room which is

• Students in a single group, the group they have been assigned to
• Students in more than one group, the first group they have been assigned to
• Teachers, the all users group

This right now is making them go to different rooms when using groups.