Device orientation

The device orientation is working although at first it was activated on load and every time I was moving the mouse, which I thought was shit for people who just want to play around moving the mouse. Therefore I added a button on top to allow people to activate or deactivate it.

At the moment, activating the device orientation effect works but for some reason, clicking on the button again doesn't actually deactivate it. I don't know what I'm missing there... :(

Hope you like it anyway and I'm happy to talk about it tomorrow :)