Add node-firestore-import-export to docker container.

Add data to import.

docker-compose.yml

@@ -7,6 +7,8 @@ services:
       args:
         WEB_USER_ID: 33
         WEB_USER_NAME: www-data
+    environment: 
+      - GOOGLE_APPLICATION_CREDENTIALS=
     working_dir: /var/www/vue
     expose:
       - 8000