Use reparentToDisplayId to move the shade between displays

This uses the new API from display manager to reparent non-activity
windows without triggering onAttached/Detached.

As SysUI heavily relies on getting those callbacks only once (for some
windows), this makes the flexiglass refactor work without additional
changes even when the shade window moves.

Also, the shade move is much faster now: from the 600ms of the previous
approach to the <100ms of the current one (as all "onAttached" callbacks
are not being triggered)

After the change of window, only a configuration change in the shade
root view is received now, and propagated though configurationForwarder
to the other classes interested.

Bug: 362719719
Bug: 381258683
Bug: 381075014
Test: ShadeDisplaysInteractorTest
Flag: com.android.systemui.shade_window_goes_around
Flag: com.android.window.flags.reparent_window_token_api
Change-Id: I85dbc219eea894ec5c9e81fe378cdd5cc361cfde