Refactor Autoren context into Public context

lib/outlook/public.ex

@@ -61,4 +61,15 @@ implement to_param protocol (no more needed for Outlook.Translations.Translation
     |> String.to_integer(36)
     |> get_artikel!()
   end
+
+  # for /autoren/
+
+  def list_autoren do
+    Repo.all(Author)
+  end
+
+  def get_autor!(id) do
+    Repo.get!(Author, id)
+    |> Repo.preload([articles: [:translations]])
+  end
 end