Bump terser and @angular-devkit/build-angular in /front-end

Bumps [terser](https://github.com/terser/terser) to 5.14.2 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `terser` from 5.7.1 to 5.14.2
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](terser/terser@v5.7.1...v5.14.2)

Updates `@angular-devkit/build-angular` from 12.2.17 to 12.2.18
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/12.2.18/CHANGELOG.md)
- [Commits](angular/angular-cli@12.2.17...12.2.18)

---
updated-dependencies:
- dependency-name: terser
  dependency-type: indirect
- dependency-name: "@angular-devkit/build-angular"
  dependency-type: direct:development
...

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

Author: dependabot[bot]