Add WPML && / || Polylang support

[TylerBarnes]

Most likely all that needs to be done for WPML is to suppress filters in the collections.json endpoint query.

https://wpml.org/forums/topic/wp_query-all-posts-of-all-languages/

Since wordsby is just making paths from permalinks (eq site.com/your/page/2 becomes /your/page/2 in gatsby), subdomain WPML sites should just work by building a page for "/fr/your/page", "/en/your/page", "es/your/page", etc as long as they exist in the loop.

For polylang this looks like it will probably be good -> https://stackoverflow.com/questions/53480868/how-to-display-posts-in-all-languages-in-the-plugin-polylang

[TylerBarnes]

Actually one more thing, these posts should have a field with links to the translated versions of the same page for language switching.