Completion of Persian Translations

[rezatn0934]

I noticed that some strings in the Persian translations of Django REST Framework were missing. To enhance the user experience for Persian speakers, I have completed the missing translations.

• Details:
  • I have submitted a pull request with the completed translations.

Request

I kindly ask the maintainers to review my pull request and approve the updates to the translations.

Thank you for your attention!

[browniebroke]

Done in #9576 - no need to create an issue next time