Merge "Fix UI overlapping and void space in the full widgets picker" into sc-dev am: bcf85de807 am: 25ede37fc0 am: 2f7fe5be1c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14442204

Change-Id: Ib9c02be27545ec737895275563811ce92dcd41b1