Rename record.release to record.release_date

Includes changes to dependent tables (i.e. the record search index) and
related functions.

lib/music_library_web/live/artist_live/show.ex

@@ -125,8 +125,8 @@ defmodule MusicLibraryWeb.ArtistLive.Show do
     {collection, wishlist} = Enum.split_with(records, fn r -> r.purchased_at end)
 
     %{
-      collection: Enum.sort_by(collection, fn r -> r.release end, :desc),
-      wishlist: Enum.sort_by(wishlist, fn r -> r.release end, :desc)
+      collection: Enum.sort_by(collection, fn r -> r.release_date end, :desc),
+      wishlist: Enum.sort_by(wishlist, fn r -> r.release_date end, :desc)
     }
   end