feat(users/Profpatsch/whatcd-resolver): allow more than albums

When searching for an artist, we only put albums before, but now let’s
fetch all releases and group them by release type.

I group & sort on the backend instead of the database, cause it’s a
lot easier to express in Haskell code and the amount of data stays the
same (except for the filter for singles which I might move into the
SQL at one point?)

Adds a prelude module for better dealing with comparisons.

Change-Id: Iff235af611b6e1bac71b118a8a04fc73cacd169f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12951
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI

users/Profpatsch/my-prelude/my-prelude.cabal

@@ -61,6 +61,7 @@ library
       Aeson
       Arg
       AtLeast
+      Comparison
       Json
       Json.Enc
       Test