fix: resolve CI linting and type checking issues

config_converter/utils/output.py

@@ -1,10 +1,9 @@
 """Output utilities with Rich formatting."""
 
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, Optional
 
 from rich.console import Console
 from rich.table import Table
-from rich.text import Text
 from rich.theme import Theme