Refactoring code for modular approach

middleware/error_handler.py

@@ -2,7 +2,7 @@
 from fastapi import Request, HTTPException
 from fastapi.responses import JSONResponse
 from fastapi.exceptions import RequestValidationError
-from starlette.exceptions import HTTPException as StarletteHTTPException
+
 import logging
 
 logger = logging.getLogger(__name__)