Bump zone.js from 0.11.8 to 0.12.0 in /src-ui

Bump zone.js from 0.11.8 to 0.12.0 in /src-ui

Bumps [zone.js](https://github.com/angular/angular/tree/HEAD/packages/zone.js) from 0.11.8 to 0.12.0.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/packages/zone.js/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/zone.js-0.12.0/packages/zone.js)

---
updated-dependencies:
- dependency-name: zone.js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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