Zoom out notifications when transitioning to glanceable hub

This zoom was already implemented for keyguard UI, adding it to the
notifications on keyguard too.

Bug: 404535174
Fixes: 404535174
Test: atest SharedNotificationContainerViewModelTest
Flag: com.android.systemui.gesture_between_hub_and_lockscreen_motion
Change-Id: I9ec9e5b7f1a9d39756a22b56e590986b7c93a69b