IPFS Support

It would be pretty neat to be able to post an IPFS or IPNS address and have Discord automatically pin it to the server like any other file being uploaded, then display a proper preview of the file/directory that was pinned. I was trying to share a directory full of stuff in my server and had to post an HTTP link to a gateway. This results in just a strange-looking link with a generic preview that's unrelated to the files in question. With support on Discord's end, I think that IPFS could integrate quite well with the system.