mime apps wildcard support

[eclairevoyant]

NixOS/nixpkgs@24948e5

Is there any plan to support wildcard similar to upstream?

Originally posted by @HigherOrderLogic in #101 (comment)

[GetPsyched]

I couldn't find any material that confirms the spec itself supporting this, so I'm assuming it's not, but I'll do a test on my system in some time.

One concern I have with the glob type is that custom mime types can be registered by applications (e.g. x-scheme-handler/http) which don't exist in ${pkgs.shared-mime-info}/share/mime/types, meaning the glob expansion won't be exhaustive. Hypothetically, if the script also included mime types declared in $drv/share/mime, ~/.local/share/mime, it would be more complete.