fix(deps): update react monorepo to v19

Author: renovate[bot]

website/package.json

@@ -29,8 +29,8 @@
     "mdx-mermaid": "2.0.3",
     "mermaid": "10.9.3",
     "prism-react-renderer": "^2.3.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1"
+    "react": "19.0.0",
+    "react-dom": "19.0.0"
   },
   "browserslist": {
     "production": [