Merge "Launch all activities into the same windowingMode" into main am: d67cb978aa am: 0d32b93363

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

Change-Id: Icb2bafa9443d8cbc0c92f57f6763aea160886ec3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>