protected function makeSidebar()
    {
        $this->navigation->create(Navigable::MENU_SIDEBAR, function (MenuBuilder $sidebar) {
            $sidebar->header('Main Menu');

            // Dashboard
            $sidebar->route('scaffold.dashboard', trans('administrator::module.dashboard'), [], 1, [
                'id' => 'dashboard',
                'icon' => 'fa fa-dashboard',
                'active' => str_is(request()->route()->getName(), 'scaffold.dashboard'),
            ]);

            // Create new users group
            $sidebar->dropdown(trans('administrator::module.groups.users'), function (MenuItem $sub) {
                $sub->route('scaffold.create', trans('administrator::buttons.create_item', ['resource' => 'User']), ['module' => 'users'], 1, []);
            }, 2, ['id' => 'groups', 'icon' => 'fa fa-group']);
        });
    }