doc: added comments and updated to latest ashautentication version and required changes

lib/accounts/user_identity.exs

@@ -1,15 +1,18 @@
 defmodule Mv.Accounts.UserIdentity do
+  @moduledoc """
+  AshAuthentication specific ressource
+  """
   use Ash.Resource,
     data_layer: AshPostgres.DataLayer,
     extensions: [AshAuthentication.UserIdentity],
     domain: Mv.Accounts
 
-  user_identity do
-    user_resource Mv.Accounts.User
-  end
-
   postgres do
     table "user_identities"
     repo Mv.Repo
   end
+
+  user_identity do
+    user_resource Mv.Accounts.User
+  end
 end