Bump braces and @quasar/app in /website

Bumps [braces](https://github.com/micromatch/braces) to 3.0.3 and updates ancestor dependency [@quasar/app](https://github.com/quasarframework/quasar). These dependencies need to be updated together.


Updates `braces` from 3.0.2 to 3.0.3
- [Changelog](https://github.com/micromatch/braces/blob/master/CHANGELOG.md)
- [Commits](micromatch/braces@3.0.2...3.0.3)

Updates `@quasar/app` from 1.0.0-rc.7 to 3.3.3
- [Release notes](https://github.com/quasarframework/quasar/releases)
- [Commits](https://github.com/quasarframework/quasar/compare/@quasar/app-v1.0.0-rc.7...@quasar/app-v3.3.3)

---
updated-dependencies:
- dependency-name: braces
  dependency-type: indirect
- dependency-name: "@quasar/app"
  dependency-type: direct:development
...

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