🎩 What? Why?

Please describe your pull request.

This adds new languages asked by the city of Seattle:

• Korean
• Vietnamese
• Chinese (Traditional and Simplified)

📌 Related Issues

Link your PR to an issue

• Related to Add new Crowdin languages #6640
  Fixes partially but there are some missing languages:

• am Amharic

• om Oromo

• ti Tigrinya

• so Somali

Testing

Describe the best way to test or validate your PR.

Can't be tested yet until we have some keys in the language, although I've followed the docs for adding a new language:
https://docs.decidim.org/en/develop/managing_translations_i18n/#_adding_a_new_language

📋 Checklist

🚨 Please review the guidelines for contributing to this repository.

• ❓ CONSIDER adding a unit test if your PR resolves an issue.
• ✔️ DO check open PR's to avoid duplicates.
• ✔️ DO keep pull requests small so they can be easily reviewed.
• ✔️ DO build locally before pushing.
• ✔️ DO make sure tests pass.
• ✔️ DO make sure any new changes are documented in docs/.
• ✔️ DO add and modify seeds if necessary.
• ✔️ DO add CHANGELOG upgrade notes if required.
• ✔️ DO add to GraphQL API if there are new public fields.
• ✔️ DO add link to MetaDecidim if it's a new feature.
• ❌AVOID breaking the continuous integration build.
• ❌AVOID making significant changes to the overall architecture.

♥️ Thank you!