launch Gummy Interface from qs as a floating window

Change-Id: Ia35390e4c5b8b49f646022e899b6cca129a933be
HOVER: Match notification width on tablets too

Change-Id: I5a0c55c60a8e8dd7c51b278e7747e5fc369691ac
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
HOVER: Ensure to clear after reparenting all notifications

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Change-Id: I8d3735836952394942f044ebd067d7cc7a82bc2e
HOVER: Fix notification content not being updated

Change-Id: I6f5e95cfff9b78cdabd1d9aa00e0577b0ab78508