Bump @quasar/app-webpack from 3.14.2 to 4.0.4

Bumps [@quasar/app-webpack](https://github.com/quasarframework/quasar) from 3.14.2 to 4.0.4.
- [Release notes](https://github.com/quasarframework/quasar/releases)
- [Commits](https://github.com/quasarframework/quasar/compare/@quasar/app-webpack-v3.14.2...@quasar/app-webpack-v4.0.4)

---
updated-dependencies:
- dependency-name: "@quasar/app-webpack"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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