Add some extra info to dumpsys for floating

- TaskView / ExpandedView alpha /visibility state
- Bubble view alpha / visibility state

Test: adb shell dumpsys activity service com.android.systemui | grep -A 100 BubbleController
Flag: EXEMPT trivial logs addition
Bug: 420487074
Change-Id: I9397e1b796d59cdbeda1ed4fbce7b0daf5b52ced