Disable opening browser on server start

packages/client/package.json

@@ -30,7 +30,7 @@
     "zustand": "^3.1.4"
   },
   "scripts": {
-    "start": "cross-env PORT=4000 CI=true react-scripts start",
+    "start": "cross-env PORT=4000 CI=true BROWSER=none react-scripts start",
     "build": "react-scripts build",
     "test": "cross-env CI=true react-scripts test --env=jsdom",
     "eject": "react-scripts eject",