chore(deps): bump react-dom from 19.2.8 to 19.3.0 in /docs

Bumps [react-dom](https://github.com/react/react/tree/HEAD/packages/react-dom) from 19.2.8 to 19.3.0.
- [Release notes](https://github.com/react/react/releases)
- [Changelog](https://github.com/react/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/react/react/commits/v19.3.0/packages/react-dom)

---
updated-dependencies:
- dependency-name: react-dom
  dependency-version: 19.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]