style: address linting and typing issues

crategen/cli.py

@@ -18,6 +18,7 @@
 )
 def cli(input, output, conversion_type):
     """Command Line Interface for converting TES/WES to WRROC.
+
     Args:
         input: Path to the input JSON file.
         output: Path to the output JSON file.
@@ -30,7 +31,6 @@ def cli(input, output, conversion_type):
     Example:
         $ crategen --input data.json --output result.json --conversion-type tes-to-wrroc
     """
-
     manager = ConverterManager()
 
     # Load input data from JSON file