Send new bubble bar location with the drag end notification

Update Bubbles API that signals shell when dragging a bubble is done.
Include the new bubble bar location in the signal to only have one call
to shell when drag is done.

Bug: 330585402
Flag: ACONFIG com.android.wm.shell.enable_bubble_bar DEVELOPMENT
Test: drag bubble in launcher from right to left and release
Change-Id: I7cb3fa9f483965ee80f65a4a89e9e7cf8521b01d