Add more controls for launcher to control sysui

Added a 4 flags to control the state of system ui:
1. Disable swipe up navigation (prevents motion events going through)
2. Disable quick scrub (& step)
3. Show overview button (hidden by default)
4. Hide back button (shown by default)

Test: manual
Bug: 67957962
Bug: 70180755
Change-Id: Ibc44af9bbdfa9611688fe12285a999d81b8287e9