chore(deps): update react to v19

Author: renovate[bot]

website/package.json

@@ -20,7 +20,7 @@
     "@mdx-js/react": "^3.0.1",
     "clsx": "^2.1.0",
     "prism-react-renderer": "^2.3.1",
-    "react": "^18.0.0",
+    "react": "^19.0.0",
     "react-dom": "^18.0.0"
   },
   "devDependencies": {