Status bar Auto-Hide [2/2]
Add an option to auto-hide status bar when there are no
notifications.

PS 2 : Reorder a bit
Settings: Specify notification types for Auto Hide statusbar (2/2)
Allows users to choose between "non-permanent only" and "all notifications" in the autohide
the statusbar when there are no notifications check.

- cleanup a bit
- reduce method and provider settings call