Adjust target and src rects for swipe to home animation

Floating icon animation runs entirely in portrait
since that's what orienation launcher starts in.
Current app window target rects are in landscape to
be able animate to Overview correctly (which is not
in portrait since the leash from WM is in the same
orientation as that of foreground app).
Invert that rect as the animation from app window
to floating icon progresses.

Fixes: 148528795
Change-Id: Ie1149a1a8904afc80bd1986f8d67b6f2d88c49f2