Merge "Launch all activities into the same windowingMode" into main am: d67cb978aa

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3133074

Change-Id: I368d4036b818dfa9448f019064c5a8dfe5657faf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>