fix(deps): update react monorepo to v19

Author: renovate[bot]

package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@netlify/plugin-nextjs": "^5.8.1",
     "next": "^15.0.0",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0"
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
   }
 }