chore(deps): bump react from 18.3.1 to 19.0.0 in /examples/web

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 18.3.1 to 19.0.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/HEAD/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

examples/web/package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "core-js": "^3.10.2",
     "exocore": "file:../..",
-    "react": "^18.0.0",
+    "react": "^19.0.0",
     "react-dom": "^18.0.0"
   }
 }