def build_menu(name = DEFAULT_MENU)
      @menus.before_build do |menus|
        menus.menu name do |menu|
          yield menu
        end
      end
    end
def build_menu(name = DEFAULT_MENU)
      @menus.before_build do |menus|
        menus.menu name do |menu|
          yield menu
        end
      end
    end
Add a callback to be ran when we build the menu

 @param [Symbol] name The name of the menu. Default: :default
 @yield [ActiveAdmin::Menu] The block to be ran when the menu is built

 @return [void]