move cross-env dependency

Author: annieshinn

package.json

@@ -25,6 +25,7 @@
     "browserify": "^10.2.4",
     "cookie-parser": "^1.4.5",
     "cors": "^2.8.5",
+    "cross-env": "^5.2.0",
     "dotenv": "^8.2.0",
     "ejs": "^2.4.1",
     "express": "^4.12.3",
@@ -52,7 +53,6 @@
     "@babel/preset-react": "^7.12.13",
     "babel-loader": "^8.2.2",
     "concurrently": "^4.1.0",
-    "cross-env": "^5.2.0",
     "css-loader": "^1.0.1",
     "eslint": "^7.17.0",
     "eslint-plugin-react": "^7.21.5",