When setting the corner radius constantly in TransformParams sometimes
we set the radius after the end of the recents transition, causing
Desktop tasks to have non-rounded corners at the end of recents
transitions.
Bug: 378657004
Test: manual + TransformParamsTest
Flag: com.android.window.flags.enable_desktop_recents_transitions_corners_bugfix
Change-Id: I2ae919424602d655d0995b4dc1951d96c7dfd3d8