Add support for uploading multilingual descriptions

[USTC-XeF2]

Please confirm the following.

• I checked the existing issues for duplicate feature requests
• I have checked that this feature request is not on our roadmap

What parts of Modrinth is your feature request related too?

Modrinth.com website

Is your suggested feature related to a problem? Please describe.

I often need to use translation software to read descriptions when browsing projects on the Modrinth website. As a developer, I can write multi language README for my works, but I cannot upload versions in other languages except for the default description.

Describe the solution you'd like

I hope to add optional multilingual descriptions. Since localization has been launched now, it is necessary to upload multilingual descriptions.

Describe alternatives you've considered

This can be achieved through automatic translation, but using related APIs may be more complex and there may be some inaccuracy in expressing descriptions in other languages.

Additional context

No response

[3TUSK]

FYI: there are prior discussions, but they are all stalled:

• Multilingual display mode support #1879
• Localization for projects labrinth#359
• Localization for projects .github#82