Adjust launcher opening drag coordinates

Future devices could have a taller screen than the other Pixel devices, so
the location of where the drag needs to start has to be lower to open the
app container.

Bug: 87844439
Test: Dialog Dismissal with Walleye, Taimen
Change-Id: I81c2d98415d8f4f990c990fe4835556fc617d9e7
(cherry picked from commit 708b1012)
Merged-In: I81c2d98415d8f4f990c990fe4835556fc617d9e7