QuickSettings: Immersive: Collapse panels on click

Most of the time users will want to enable immersive mode and go right back to the app.  This simplifies this process by closing
the quicksettings panel after immersive is activated or deactivated.

Change-Id: I7bb154941405e8efb568cf5c3cce92e963539ff8
Signed-off-by: Evan Anderson <evan1124@gmail.com>
Quicksettings: Immersive: Fix collapse panel animation.

Right now it collapse after the ui goes into immersive mode so the collapse animation is not showed.
First collapse the panel then go into immersive mode so we see the animation.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

Change-Id: Icf2925fa517fc077929e02d1f96a8cd51163b809