frontend: bump @testing-library/react version

Bump @testing-library/react to latest version 16.0.0. Also installs
@testing-library/dom as a peer dependency, see:
https://github.com/testing-library/react-testing-library/releases/tag/v16.0.0

Author: NicolaLS

frontends/web/package-lock.json

@@ -5,7 +5,7 @@
   "devDependencies": {
     "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
     "@testing-library/jest-dom": "^6.4.6",
-    "@testing-library/react": "^14.2.1",
+    "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.5.2",
     "@types/node": "^20.12.7",
     "@types/react": "18.3.3",