App sidebar: some adjustments

- Cleanup
- fix disappearing appbar on changing appbar position
- may fix endless FC on changing appbar contents

Change-Id: I7667e60878c07b7c722dbd2bd5c2fd69bbbdda78
Menu button location and menu force show

PS2: squash and fix menu to show
     use getInt and not getBoolean

Change-Id: Ie29c0e880f5e0862677232c5bf29d9336722ce3d