dotcase: cleanup

Change-Id: I7655340ef9bad5353730ee37506838848eb0b31e
dotcase: add to IMMERSIVE_MODE_CONFIRMATIONS

Change-Id: I076b9207fd70cecde10ff71a2be0316218dde333
dotcase: double tap to put back to sleep

Change-Id: I3e91c85140d1ff4f517d45104205e851f7a3222d
dotcase: few more updates

* only run one instance
* disable window animations
* set background to black
* remove res dir for now

Change-Id: I5a684b366bdbde765913287f807e80d6866ec027