🌐 Add Persian translation for `docs/fa/docs/advanced/sub-applications.md` (#9692)
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Amin Alaee <mohammadamin.alaee@gmail.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>
