add memory limit to ui's yarn build

Author: lihebi

ui/package.json

@@ -61,7 +61,7 @@
   },
   "scripts": {
     "dev": "react-app-rewired start",
-    "build": "react-app-rewired build",
+    "build": "react-app-rewired build --max_old_space_size=4096",
     "test": "react-app-rewired test",
     "eject": "react-app-rewired eject"
   },