Bump postcss from 7.0.35 to 7.0.36 in /finish/src/main/frontend (#114)

* Bump postcss from 7.0.35 to 7.0.36 in /finish/src/main/frontend

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.35 to 7.0.36.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@7.0.35...7.0.36)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

* update start/src/main/frontend/package-lock.json as well

Co-authored-by: Gilbert Kwan <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]