Merge "Fix bug where All Apps button loads in late in taskbar." into udc-qpr-dev am: 5838767cc2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/25021492

Change-Id: I027ebf7933332b48434144f9776fb8a29c783fb6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>