Split screen action doesn't work anymore in Android 13+

# Issue description

`Global system action not supported`

Split screen action doesn't work or can't be selected. It worked before in Android 12 or older versions.

Unfortunately, there is no solution for this issue ☹️. The Global Action Split Screen was removed from Android 13 by Google and they won't add it back.

- Issue raised on Android issue tracker here: https://issuetracker.google.com/issues/225186417.
Star the issue and maybe they will change their mind
- The commit from 2021 December 02 in Android source code that removed this function can be seen here: https://android.googlesource.com/platform/frameworks/base/+/1ad80ead9205e5a6dd54d6de6706b865f496b803%5E%21. The commit description is:
> Document the split-screen action
> The split-screen behavior is changed, so systemui doesn't
> support this action with a single activity. We don't handle
> this action by default from sc-v2. If SystemUI has any behavior
> changed, they could register this action to support it.

The action for [GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN](https://developer.android.com/reference/android/accessibilityservice/AccessibilityService#GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN) was removed from AOSP Android 13. Other manufacturers might implement this functionality back.

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**GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN** doesn't work anymore in Android 13+.

Start with the Android issue tracker entry 225186417 and the linked AOSP commit from December 2, 2021. Confirm that GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN was removed in Android 13 and review whether the issue tracker or Android documentation identifies a supported alternative. Done would require an Android or manufacturer-side change; this issue provides no repository-side fix.

Written by the indexing model from the issue text.