Move some tests out of BubblesTest

These are all related to bubble controller / bubble bar logging
so moving into the BubbleControllerBubbleBarTest file.

Includes a fix for b/415825436 ... which was to wait for an idle sync
in the teardown

Flag: EXEMPT tests only
Test: atest BubbleControllerBubbleBarTest
Test: atest WMShellRobolectricTests
Bug: 216523800
Change-Id: I69550d7a8865cec45c80fd126cdeac30100a3ff8