Fullscreen mode doesn't work with "AirBnB" style

Note to self: this is principally unsolvable in the forseeable future. AJAX Views replaces the views content div, including the container with map.
The Geolocation JS intervenes there, and moves the map container over to the new content before replacement, thus preserving it. This destroys the fullscreen anchored DIV though, thus ending fullscreen. This is most likely a security measure of the browser.

Leaving it open in case a future development allows to do something else.

This MR adds a new Fullscreen button, that not fullscreeens the map, but the entire view-container, so the AJAX replacements happen within and it doesn't collapse.

Automatically closed - issue fixed for 2 weeks with no activity.