[Conduits] If you try to PATCH a shard on a conduit that doesn't exist you get a generic 404

[BarryCarlyon]

Brief description

If you try to https://dev.twitch.tv/docs/api/reference/#update-conduit-shards on a conduit that doesn't exist

You get a generic 404 "not found" rather than a "conduit not found"

How to reproduce

Try to assign shard 0 of a non existant conduit to a transport

Expected behavior

Something more useful than

{"error":"Not Found","status":404,"message":"not found"}

Screenshots

Additional context or questions

I guess not a bug, just unclear/could be improved.