Changed edge back panels back to nav overview fixes various bugs

- Fixes using back on keyguard to cancel from inputting password
- Fixes hitting dialog boxes like accessibility
- Readjust the height for ime

May fix other things

Test: manual
Fixes: 129088764
Fixes: 128480785
Change-Id: Iedec74e1d8de044270250c474a9af30194901ca4