Merge "Remove scrim from navigation bar from full widget picker." into sc-dev am: 57cdcceb07 am: 897a386b03

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15095782

Change-Id: I4d6e8260e01eb547e17ca0ef1513080a45c869fc