Bug 962434 - Moving value selector into subcomponents of an appWindow. I...

...mproving its visibility a11y.
Now activityWindow/popupWindow is managed by AppWindow which is managed by AppWindowManager so it's fine.
But if the selector is inside:
* Attentionscreen
* Lockscreen
* Rocketbar(SearchWindow)
Then this doesn't work.

For sure we don't have the use case right now