First post-jam update!

For the first post-jam update, I have added a neat intro that is supposed to act as a mask for the loading of assets in the background. Initially, most of assets were loaded with the main menu since it was the first to run. This caused assets to load incorrectly, especially in the JS version, because of how browsers work. The most notable bug was the wrong order of the soundtrack, which was delayed by the fact that browsers disable autoplay. This intro handles the initial part of loading assets(so they are only loaded once, since the intro only runs once), and also asks the user to press a key so the first song technically starts by user input, not autoplay ;)

By the time of this writing the source code and the HTML5 release are updated, but not the windows are linux binaries(mostly since the native versions weren't affected).

Expect more updates :D