docker modify for env

Dockerfile

@@ -14,7 +14,7 @@ RUN npm install
 COPY . .
 
 # Build the React application
-RUN npm run build
+RUN node create-env.js && npm run build
 
 # Serve the built React application using a simple HTTP server
 RUN npm install -g serve

package.json

@@ -18,8 +18,7 @@
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
-    "eject": "react-scripts eject",
-    "prebuild": "node create-env.js"
+    "eject": "react-scripts eject"
   },
   "eslintConfig": {
     "extends": [