Fix cog context.

Author: i0bs

discord_slash/cog_ext.py

@@ -188,7 +188,7 @@ def wrapper(cmd):
 
     return wrapper
 
-def cog_context_menu(self, target: int, name: str, guild_ids: list = None):
+def cog_context_menu(target: int, name: str, guild_ids: list = None):
     """
     Decorator that adds context menu commands.