Hide suppressed bubble

When a bubble is suppressed it should be removed from the stack and
expanded view.
Previously we were updating the visibility of the suppressed bubble.
This kept it in the expanded view.
Updating the suppression logic to remove the suppressed bubble view
temporarily, while it is suppressed.
When it should be visible again, adding it back.

Bug: 214090876
Test: atest BubbleDataTest BubblesTest
Test: manual, created a single bubble, checked it is hidden when
associated activity is opened and shown again after activity closes
Test: manual, created multiple bubbles, checked bubble is hidden when
associated activity is opened and shown again after activity closes
Test: manual, checked that suppressed bubble is not shown in expanded
view

Change-Id: I591a4330ccbb4d9764100715140d8bd20d0351bf