Apply prepare changes

Author: JulienChampagnol

src/opengeodeweb_viewer/config.py

@@ -7,7 +7,9 @@ def default_config() -> None:
     os.environ["HOST"] = "localhost"
     os.environ["PORT"] = "1234"
     os.environ["PROJECT_FOLDER_PATH"] = "/project/"
-    os.environ["DATA_FOLDER_PATH"] = os.path.join(os.environ["PROJECT_FOLDER_PATH"], "data")
+    os.environ["DATA_FOLDER_PATH"] = os.path.join(
+        os.environ["PROJECT_FOLDER_PATH"], "data"
+    )
 
 
 def prod_config() -> None: