Merge "Force persistent taskbar all apps icon to light version." into tm-qpr-dev am: 858092151c am: f114ad9fa4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21164239

Change-Id: I1fc1ca1a807d3d23448e456dddc9de91af0fced6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>