Update react monorepo to v19

Author: renovate[bot]

example/package.json

@@ -12,14 +12,14 @@
   "dependencies": {
     "@convex-dev/workpool": "file:..",
     "convex": "file:../node_modules/convex",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1"
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "3.3.1",
     "@eslint/js": "9.31.0",
-    "@types/react": "18.3.23",
-    "@types/react-dom": "18.3.7",
+    "@types/react": "19.1.8",
+    "@types/react-dom": "19.1.6",
     "@vitejs/plugin-react": "4.7.0",
     "eslint": "9.31.0",
     "eslint-plugin-react-hooks": "5.2.0",