renaming properly all middleware test cases and fixing bugs

main.py

@@ -41,9 +41,9 @@ from app.exceptions import ServiceUnavailableException
 
 # Import REFACTORED class-based middleware
 from middleware.vendor_context import VendorContextMiddleware
-from middleware.context_middleware import ContextMiddleware
+from middleware.context import ContextMiddleware
 from middleware.theme_context import ThemeContextMiddleware
-from middleware.logging_middleware import LoggingMiddleware
+from middleware.logging import LoggingMiddleware
 
 logger = logging.getLogger(__name__)