Forward CommunalContainer touches when hub mode closed

CommunalContainer is currently placed above keyguard in the SysUI
window. Our SceneContainerLayout consumes all touches it receives even
when hub mode is closed and only the edge swipe gesture is active. This
also causes the screen timeout to not be refreshed for touches in hub
mode.

This change forwards touches outside the edge swipe zone to the
ShadeViewController so that some basics like swipe down to open the
notifications or up to show the bouncer will work. We also send a user
activity event to PowerManager to refresh the screen timeout. This is
only intended as a temporary improvement while we figure out the
details of moving CommunalContainer to a lower z-order, where it will
no longer block touches.

Note that taps and gestures on lock screen notifications or in the
notification shade still do not work as those are not handled by
ShadeViewController.

DefaultCommunalHubSection is cleaned up a bit as it causes a circular
dependency otherwise. It is slated for deletion in b/306485186.

Bug: 308813166
Bug: 309170620
Fixed: 309170620
Flag: ACONFIG com.android.systemui.communal_hub DEVELOPMENT
Test: atest CommunalViewModelTest CommunalEditModeViewModelTest
      also manually verified on device that swipe up/down work on lock
      screen with communal_hub flag on
Change-Id: I231b150f42c10f7973a721e0b92e895f36999ff1