Detect force visible nav bar based on kids mode. am: 6d17a71d am: ec7b63d5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/19038728



Change-Id: I57e87b1e9848025a3045071283aae47034e96db7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>