Do not consume motion events in the highlighted item

The highlighted item, visually an outline, that highlights a content in
the communal hub grid, is drawn on top of the content itself, consuming
motion events, causing side effects like the configuration button not
triggering. This changes makes it so that the highlighted item does not
consume any motion event but pass them down to the content.

Bug: 330426036
Fix: 330426036
Test: verified tapping the widget configuration button works
Flag: ACONFIG com.android.systemui.communal_hub TEAMFOOD
Change-Id: I51cb5762219342ec46a4f5a0e41564582e95d4d0