[gnome-mahjongg] menus: Move Preferences to bottom section of primary menu

[Jeremy Bicha <jbicha src gnome org>]

commit 5b082a4da5e0f7a586e09d7d7f080d694bdca52e
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Fri Dec 7 19:28:53 2018 -0500

    menus: Move Preferences to bottom section of primary menu
    
    as recommended by
    https://gitlab.gnome.org/GNOME/Initiatives/wikis/App-Menu-Retirement

 src/gnome-mahjongg.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/gnome-mahjongg.vala b/src/gnome-mahjongg.vala
index 525b99b..031e534 100644
--- a/src/gnome-mahjongg.vala
+++ b/src/gnome-mahjongg.vala
@@ -143,9 +143,9 @@ public class Mahjongg : Gtk.Application
         mahjongg_menu.append (_("_New Game"), "app.new-game");
         mahjongg_menu.append (_("_Restart Game"), "app.restart-game");
         mahjongg_menu.append (_("_Scores"), "app.scores");
-        mahjongg_menu.append (_("_Preferences"), "app.preferences");
         var help_menu = new Menu ();
         menu.append_section (null, help_menu);
+        help_menu.append (_("_Preferences"), "app.preferences");
         help_menu.append (_("_Keyboard Shortcuts"), "win.show-help-overlay");
         help_menu.append (_("_Help"), "app.help");
         help_menu.append (_("_About Mahjongg"), "app.about");