extracted states to own files

main.py

@@ -11,6 +11,8 @@ import g
 import game.state_tools
 import game.states
 
+from game.states.MainMenu import MainMenu
+
 def main() -> None:
     """Entry point function."""
     tileset = tcod.tileset.load_tilesheet(
@@ -18,7 +20,7 @@ def main() -> None:
     )
     tcod.tileset.procedural_block_elements(tileset=tileset)
 
-    g.states = [game.states.MainMenu()]
+    g.states = [MainMenu()]
     g.console = tcod.console.Console(80, 50)
     with tcod.context.new(console=g.console, tileset=tileset) as g.context:
         game.state_tools.main_loop()