Dynamic start screen image

Hey, everyone!

Just a quick update that makes the main menu camera image dynamic, to add a bit of flavour.

I was working on this on the full version and i thought it made sense to bring the feature in the demo as well! (Even though the images aren't final yet)

And, if you're enjoying the demo, please add EMPTY SHELL 2 to your wishlist. It can make a huge difference for the future of the game :)