refactored User Groups to use two separate callflows
UI-775: Now using the proper ring group (baseGroup) in MainNumber > Incoming Call Handling
UI-773: Added a feature for 'Next Action' (formerly 'extra-node') on ring groups
Merge branch 'master' into UI-706
UI-819: Showing an error popup when group data is outdated
UI-706: merging latest code from master
Merge branch 'UI-706'