Don't intercept above shelf progress if still animating

When you swipe up to overview from home, we should allow touches on
recents even if the overshoot animation isn't finished. If the
touch is below the all apps progress, we continue to intercept to
allow for double swipe up.

Bug: 80093992
Change-Id: Ifdca61e7cfc1f7a713c067596cc0c1bd3154b44e