Exclude functions.py from cog loading (it's a helper module)

main.py

@@ -73,7 +73,7 @@ async def on_command_error(ctx: commands.Context, error: commands.CommandError):
 async def load_cogs():
     cogs_dir = pathlib.Path(__file__).parent / "cogs"
     for file in cogs_dir.glob("*.py"):
-        if file.stem.startswith("_"):
+        if file.stem.startswith("_") or file.stem == "functions":
             continue
         ext = f"cogs.{file.stem}"
         try: