Add Korean localization to the official documentation

[dmchoi77]

Clear and concise description of the problem

Currently, the official documentation website does not provide an official Korean translation.

I am a Korean developer who recently adopted Module Federation in a production micro-frontend project at work. I have benefited a lot from this library and its documentation, and I would like to contribute back to the project.

Inspired by #4829 and the merged Brazilian Portuguese localization PR #4850, I would like to propose adding a Korean translation to the official documentation website.

This would help improve accessibility for Korean-speaking developers who want to learn and adopt Module Federation.

I intend to submit a PR for this issue.

Suggested solution

Add Korean localization support to the official documentation website.

The implementation would include:

• Adding Korean (ko) as a supported locale
• Adding Korean navigation and UI translation strings
• Translating the official documentation pages into Korean
• Ensuring the Korean documentation builds and works correctly in the local docs site

The translated documentation would be available from the language selector alongside the existing supported languages.

Alternative

A separate community translation could be maintained outside the official documentation, but an official Korean localization would be easier for Korean developers to discover and follow.

Additional context

Related/inspiring references:

• Add full translation to Portuguese (Brazil) to the official documents. #4829
• feat(i18n): add Brazilian Portuguese localization and documentation #4850

The Brazilian Portuguese translation effort showed that adding community-maintained localized documentation is valuable, and I would like to contribute a Korean version in the same spirit.

Validations

• Read the Contributing Guidelines.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.