Merge "Fix UI overlapping and void space in the full widgets picker" into sc-dev am: bcf85de807 am: e19bda0be5

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

Change-Id: Iebd73e0813f7f2706de86b70981f5394057d3b1c