Bumps [@hypothesis/frontend-shared](https://github.com/hypothesis/frontend-shared) from 6.7.0 to 6.8.0.
- [Release notes](https://github.com/hypothesis/frontend-shared/releases)
- [Changelog](https://github.com/hypothesis/frontend-shared/blob/main/docs/releases.md)
- [Commits](https://github.com/hypothesis/frontend-shared/compare/v6.7.0...v6.8.0)

---
updated-dependencies:
- dependency-name: "@hypothesis/frontend-shared"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>