Bump ngx-highlightjs from 4.1.3 to 4.1.4 in /web

Bumps [ngx-highlightjs](https://github.com/murhafsousli/ngx-highlightjs) from 4.1.3 to 4.1.4.
- [Release notes](https://github.com/murhafsousli/ngx-highlightjs/releases)
- [Changelog](https://github.com/MurhafSousli/ngx-highlightjs/blob/master/CHANGELOG.md)
- [Commits](MurhafSousli/ngx-highlightjs@v4.1.3...v4.1.4)

---
updated-dependencies:
- dependency-name: ngx-highlightjs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>