Allow searching by MAL/Anilist/Kitsu/MU IDs

[Remocracy]

We should be able to search for manga with just the MAL id.

 

[RogueKitsune]

Why would Mangadex want to track and manage another site's IDs that can arbitrarily change without warning. If you know the ID for those sites look it up there and then search for the title on MD.

 

[Remocracy]

Why would Mangadex want to track and manage another site's IDs that can arbitrarily change without warning. If you know the ID for those sites look it up there and then search for the title on MD.

Mangas already have these IDs anyways, so I was thinking that maybe we could just use them as filters for search.