Allow recents animation to override divider minimized state

- When swiping up while in split-screen, the animation should be able to
  adjust the docked divider minimized state so that we don't wait until
  launcher is repositioned to the front in order for the divider to
  update.

Bug: 73118672
Test: Enter split screen, swipe up and ensure the dock divider moves
      (Note, there are still unrelated clipping issues)

Change-Id: Id71f91eaf2f06b3c33628a2199cc94c82e235471