Handle dialogs for remote insets controller

Dialog from app or system should not change the system bar visibilty
set by the top fullscreen opaque window.

Notifiy the remote insets controller with the top full screen
opaque window if finding the focused window is a dialog.

Dialog from app share the same package name as it's owner, so checking
if the window is dialog first.

Flag: EXEMPT bugfix
Bug: 357705344
Test: manual
Change-Id: I668273e9c7ae81db2d2a52546bf88d0fbb148149