Merge "RTL UI for stack & manage menu user education" into rvc-dev am: 9fba23f97f am: f8f994542c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11887952

Change-Id: Ie80cf8609eeaf8ac76731e1ea7b0536faf95a9a1