first ideas how to implement jack sync monitoring
Merge branch 'feature/jack' into feature/jack-mon
Merge branch 'feature/jack' into feature/jack-mon
basic jack transport monitoring implemented
Merge branch 'feature/jack' into feature/jack-mon
Merge branch 'feature/jack' into feature/jack-mon
Merge branch 'feature/jack' into feature/jack-mon
some progress on jack transport monitoring

monitoring enable/disable button slots added
jack playback sync monitoring enable/disable logic + action implemented

todo: cleanup code + sync diff value in config