Adding Swedish to config.toml

[yeager]

No description provided.

[JulienPalard]

Thanks @yeager!

This can take up to 24h to happen in production.

You'll have to manually add /sv/ in the URL to see your pages.

Once you hit the requirements from PEP 545:

100% of bugs.html with proper links to the language repository issue tracker.
100% of tutorial.
100% of library/functions (builtins).

you'll be able to open another PR removing the in_prod = false to display the translation in the language menu.