Account for IME windows when considering touch for unfreezing the recents list

- The IME generally occludes the app window so touches there should also
  unfreeze the recent task list (similar to interacting with the app)

Bug: 323347301
Flag: EXEMPT bugfix
Test: Manual, quickswitch to a previous task with a showing IME and
      interact with it and quickswitch back
Change-Id: Ie3ae7fcdd049f3aceae501a5cd1920ab7cbeb6f5