Bump markdown-it from 10.0.0 to 12.3.2 in /dashboard

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 10.0.0 to 12.3.2.
- [Release notes](https://github.com/markdown-it/markdown-it/releases)
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](markdown-it/markdown-it@10.0.0...12.3.2)

---
updated-dependencies:
- dependency-name: markdown-it
  dependency-type: direct:production
...

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