Use long labels for formats in stats page

lib/music_library_web/controllers/stats_html.ex

@@ -1,11 +1,13 @@
 defmodule MusicLibraryWeb.StatsHTML do
   use MusicLibraryWeb, :html
 
+  alias MusicLibrary.Records.Record
+
   embed_templates "stats_html/*"
 
   defp format_records_count(records_count_by_format) do
     Enum.map(records_count_by_format, fn {format, count} ->
-      Integer.to_string(count) <> " " <> Atom.to_string(format)
+      Integer.to_string(count) <> " " <> Record.format_long_label(format)
     end)
     |> Enum.join(", ")
   end