Increase the size of the 'target' that bubble is dragged to for dismiss

* The text target is pretty small, this CL increases the area around it
  when checking if the views are intersecting for an easier dismiss action
* Also includes a different haptic effect when you drag away / out of
  the target.

Bug: 111236845
Test: manual - enable bubbles and drag to target, note that it's easier
      and you feel the haptic effect
Change-Id: I77d5e796162a5b107f964c038e11b58b448b6d4b