Update bubble bar expanded view when bubble bar location updates

We are introducing a new way to reposition the bubble bar through a11y
actions. This creates a new case where bubble bar location update comes
in from launcher while the expanded view is visible.
Previously we were always hiding the expanded view, while launcher was
updating the bubble bar location. And only updating the internal state
in positioner regarding bubble bar position.

Ensure that when bubble bar location change comes in, and bar is
expanded, we update the expanded view too.

Bug: 347028716
Flag: com.android.wm.shell.enable_bubble_bar
Test: check expanded view position and animation when updating bubble
  bar location by dragging from:
  - expanded view from handle
  - one bubble in bar
  - the entire bar
Change-Id: Ic21410562051ba26d2394e797f0ef87a0aea0a4c