Stop overlay touch handling when the bouncer or glanceable hub are visible over the dream

The dream overlay listens to touches globally and intercepts some
gestures over the dream. Currently all of these handlers are paused
when the notification shade is open, but not the bouncer or the
glanceable hub.

This change also stops touch handling when the bouncer or glanceable
hub are open. The bouncer is already capable of handling the close
gesture, and the glanceable hub handles all its own touches, so we
don't need overlay touch handling above either.

Test: atest DreamOverlayServiceTest BouncerSwipeTouchHandlerTest
      also manually verified touches aren't intercepted when hub or
      bouncer are open
Bug: 328838259
Flag: ACONFIG com.android.systemui.communal_hub TEAMFOOD
Change-Id: I536a2e1ed2f9cc6e362b25648d02f63c6917637e