clean: code

src/models/config.py

@@ -339,7 +339,7 @@ def set_usage_point_config(self, usage_point_id, key, value):
             else:
                 value = str(value)
             self.config["myelectricaldata"][usage_point_id][key] = value
-            with self.path_file.open("w", encoding="utf-8") as outfile:
+            with Path(self.path_file).open(mode="w", encoding="utf-8") as outfile:
                 yaml.dump(self.config, outfile, default_flow_style=False)
         else:
             return False