Bump react from 18.3.1 to 19.1.1 in /examples/react

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 18.3.1 to 19.1.1.
- [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/v19.1.1/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

examples/react/package.json

@@ -15,7 +15,7 @@
     "@domstack/static": "file:../../.",
     "htm": "^3.1.1",
     "mine.css": "^9.0.1",
-    "react": "^18.0.0"
+    "react": "^19.1.1"
   },
   "devDependencies": {
     "@types/react": "^19.1.10",