Linting error cant do this within an f string

Author: davisadam10

aces/idt/application.py

@@ -421,5 +421,6 @@ def validate_project_settings(self) -> None:
 
         valid, errors = self.project_settings.validate()
         if not valid:
-            msg = f"Invalid project settings\n: {'\n'.join(errors)}"
+            error_string = "\n".join(errors)
+            msg = f"Invalid project settings\n: {error_string}"
             raise ValueError(msg)