fix(deps): update react monorepo to v19.2.4

Author: renovate[bot]

frontend-demo/package.json

@@ -30,8 +30,8 @@
     "better-react-mathjax": "^2.3.0",
     "formik": "^2.4.6",
     "next": "15.5.10",
-    "react": "19.2.3",
-    "react-dom": "19.2.3",
+    "react": "19.2.4",
+    "react-dom": "19.2.4",
     "tiny-invariant": "^1.3.3",
     "yup": "^1.6.1"
   },