An improved style for the main menu! (Patreon)

Hello, Guapo's Team! 

I updated something I had forgotten to update for a while: the main menu!

I noticed this just before releasing the last version, but I hadn't enough time to get it ready at that time, so I have it ready right now.

It will change depending on the time of day; since it was 4:00 pm, it's displayed that way (daytime/morning), but it can also be shown as night or sunset.

And I cleaned the main menu (fewer buttons) a bit, and now you have all the links (public version, support the game, latest version) and credits inside the button: extras.