Fullscreen option

[Cwpute]

Just so that the actual game can take up the most screen as possible :)
The top row menu could also be hidden, and appear again when the cursor reaches the top of the screen.

[timcharper]

done

[timcharper]

(went with transplanting the controls on fullscreen, as opposed to auto-hide/show on mouse hover

[timcharper]

well, that didn't work. Reverted the change. For some reason the transplanted controls don't work, and I'm not sure why. Even the timer button (which triggers an action by name) doesn't work :/ no idea why.