add todo

EnvelopeGenerator.Web/Controllers/ControllerBaseExtensions.cs

@@ -57,6 +57,7 @@ namespace EnvelopeGenerator.Web.Controllers
 
         #region View error
         //TODO: integrate localizer for ready-to-use views
+        //TODO: integrate to global exception handler middleware
         public static ViewResult ViewError(this Controller controller, ErrorViewModel errorViewModel) => controller.View("_Error", errorViewModel);
 
         public static ViewResult ViewError404(this Controller controller) => controller.ViewError(new()