Merge "Use widget picker color surface for WidgetsBottomSheet" into sc-dev am: 99d4010c6e am: 2ddfb8f8a6 am: 5ea1d6545d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14339830

Change-Id: I05718e0b62708d12dba53a0e9040f7dbb72260f4