Support for multilingual pages

[chucker]

This will require some brainstorming.

Goal

Translating an entire wiki is probably impractical, but it should be possible for individual pages to be available in multiple languages.

Design idea

• If a page is named My-Document.en-us.md instead of My-Document.md, consider that the US English version.
• If this matches the browser's Accept-Language header, default to showing that.
• If additional languages exist, show flags in the top right to switch to those, e.g. a German flag for My-Document.de-de.md.

Considerations:

• will this suck to use in Azure DevOps itself?
• how does the search know which language to filter for?

[ricardoboss]

For the search: we could introduce multiple indexes, one for each language found in the sources. The API can then provide a way to select which languages to search.

[chucker]

Yes, but each language's index should also contain the fallback pages, where necessary.

[chucker]

I'm confused how this differs from #8. :)

[ricardoboss]

You tell me, you're the author of both :D

[chucker]

I know 😂