whoops the last update rekt the skybox but i fixed that now, sorry-

- made the music button movable with the physgun. It toggles the music now, and if you remove the button it will respawn

- changed the content's paths and now there is no chance for addon interference anymore

- added ground and air nodes

- fixed flags being flipped horizontally lol

- fixed some z-fighting-like visual glitches on the stadium's lightmap model