Bump react from 18.3.1 to 19.2.3

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 18.3.1 to 19.2.3.
- [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/v19.2.3/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.2.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -26,7 +26,7 @@
     "color": "^4.2.3",
     "npm-to-yarn": "^2.2.1",
     "prism-react-renderer": "^2.3.1",
-    "react": "^18.2.0",
+    "react": "^19.2.3",
     "react-dom": "^18.2.0",
     "react-github-btn": "^1.4.0",
     "react-markdown": "^9.0.1",