added testing dependencies

Author: wiltonlee948

www/package.json

@@ -28,6 +28,8 @@
     "zod": "^3.18.0"
   },
   "devDependencies": {
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
     "@types/node": "^18.0.0",
     "@types/react": "^18.0.14",
     "@types/react-dom": "^18.0.5",