允许LLM提供商作为discourse-translate插件的翻译服务

[sam (Sam Saffron)]

这现在已完成 @elmstedt ，请参阅：

Content Localization and Automatic Translations for Your Community

[Meta localized to Japanese] Content localization and automatic translations are now ready, bringing multilingual support to your communities. This feature is enabled here on Meta. Our experiments here have drummed up quite a lot of buzz as we’ve been tinkering away, and we are very pleased to say that the anticipation is finally over and you can now have these great new features live on your sites too. With these powerful new additions, you can now …

我们仍在改进此功能，最近 @nat 为多语言社区添加了 Google 索引支持

@keegan 正在处理 UI 以查看翻译进度。