Bump webpack and @angular-devkit/build-angular in /frontend

Bumps [webpack](https://github.com/webpack/webpack) and [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies needed to be updated together.

Updates `webpack` from 5.76.1 to 5.94.0
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.76.1...v5.94.0)

Updates `@angular-devkit/build-angular` from 15.2.6 to 18.2.2
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@15.2.6...18.2.2)

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

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