Bump @material-ui/lab in /src/frontend

Bumps [@material-ui/lab](https://github.com/mui-org/material-ui/tree/HEAD/packages/material-ui-lab) from 4.0.0-alpha.57 to 4.0.0-alpha.60.
- [Release notes](https://github.com/mui-org/material-ui/releases)
- [Changelog](https://github.com/mui-org/material-ui/blob/next/CHANGELOG.md)
- [Commits](https://github.com/mui-org/material-ui/commits/HEAD/packages/material-ui-lab)

---
updated-dependencies:
- dependency-name: "@material-ui/lab"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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