[Dependency] Upgrade Next.js to 14.2.21

Author: Himani Anil Deshpande

frontend/package.json

@@ -12,7 +12,7 @@
     "i18next": "^21.8.13",
     "js-yaml": "^4.1.0",
     "lodash": "^4.17.21",
-    "next": "^14.1.1",
+    "next": "^14.2.21",
     "next-transpile-modules": "^10.0.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",