Merge "Update snackbar color" into sc-dev am: 48ec126d8b am: 42064e0d30

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15129885

Change-Id: Id38337cc942d3a632e1f04ca20e7c90cb6a1e8eb