Fix: NavRing landscape swipe

this commit fixes and old bug for phones "default landscape navring swipe"
which reacted buggy. Du the already submitted fix/feature to use the whole
navbar as swipe area imo a nice solution at the end.

also it removes the default home longpress action (show navring) to
be consisten to the other buttons.

cheers

Change-Id: I133c2cc5080f44d53213c2ea21638a5c23061bc6