Update app/materials_library.py

app/materials_library.py

@@ -903,7 +903,7 @@ def display_fenestrations_tab(material_library: MaterialLibrary):
                             st.error("Fenestration name cannot be empty.")
                         elif (name in st.session_state.project_data["fenestrations"]["project"] or
                               name in st.session_state.project_data["fenestrations"]["library"]) and (not is_edit or name != original_name):
-                            st.error(f"Fenestration '{name}'" already exists.")
+                            st.error(f"Fenestration '{name}' already exists.")
                         else:
                             try:
                                 new_fenestration = GlazingMaterial(