Update app/materials_library.py

app/materials_library.py

@@ -1377,7 +1377,7 @@ def check_material_in_use(material_name: str) -> bool:
 
 def check_fenestration_in_use(name: str) -> bool:
     """
-    Check if a fenestration is in use in any components."""
+    Check if a fenestration is in use in any components.
     """
     return False