[11/n] Fix a bug where tiling isn't broken on 5 app open minimize

Tiling assumed there are two ways to minimize, the back button and the
minimize button, but opening apps more than the allowed count(4)
minimizes tasks as well and this should be checked in onTransitionReady.

Flag: com.android.window.flags.enable_tile_resizing
Test: on device testing
Bug: 376221715
Change-Id: I9f5aeb5ee367cd6676264c39781ac4e6bb3008df