Update react monorepo to v19.2.8 (#2513)

Signed-off-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

frontend/package-lock.json

@@ -16,8 +16,8 @@
     "date-fns": "^4.1.0",
     "lucide-react": "^1.0.0",
     "next": "16.2.11",
-    "react": "19.2.7",
-    "react-dom": "19.2.7",
+    "react": "19.2.8",
+    "react-dom": "19.2.8",
     "tailwind-merge": "^3.3.1",
     "tailwindcss": "^4.1.12"
   },