Detect force visible nav bar based on kids mode. am: 6d17a71d19

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

Change-Id: If652dd2dc98687e6ff3106f477c23487c91e07fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>