cmm: splitted commands into separate modules (and more cleanup)

chatmastermind/commands/config.py

@@ -0,0 +1,11 @@
+import argparse
+from pathlib import Path
+from ..configuration import Config
+
+
+def config_cmd(args: argparse.Namespace) -> None:
+    """
+    Handler for the 'config' command.
+    """
+    if args.create:
+        Config.create_default(Path(args.create))