* [UX] Gesture manager: add action - Exit and Restart
Also:
- add and show some separators in the gestures list
- fix gesture removal, and also remove it from settings
- add missing east west east
- add 6 remaining of the 8 knob 3/4 rotations
- add 3 easy knob full rotation (down + east + west)
* Show and allow removing gestures only in settings
* small optimisation (no loop needed on each multiswipe check)
* keep menu open and updated when recording multiswipe