build(deps): bump @vueup/vue-quill in /docs

Bumps [@vueup/vue-quill](https://github.com/vueup/vue-quill) from 1.0.0-alpha.6 to 1.0.0-alpha.10.
- [Release notes](https://github.com/vueup/vue-quill/releases)
- [Changelog](https://github.com/vueup/vue-quill/blob/alpha/.releaserc.json)
- [Commits](v1.0.0-alpha.6...v1.0.0-alpha.10)

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

Author: dependabot[bot]