Bump @angular/cli from 7.0.2 to 8.3.4 in /angular/app-settings

Bumps [@angular/cli](https://github.com/angular/angular-cli) from 7.0.2 to 8.3.4.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Commits](angular/angular-cli@v7.0.2...v8.3.4)

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

Author: dependabot-preview[bot]