text: export const items3 = [{
      title: 'Sub Menu 3'
  }, '-', {
      title: 'Item 1-2',
      items: [{
          title: 'Item 2-1',
          callback(e) {
              console.log('*** Item 2-1 clicked', e);
          }
      },
      {
          title: 'Item 2-2',
          callback(e) {
              console.log('*** Item 2-2 clicked', e);
          }
      }, 
      {
          title: 'Item 2-3',
          callback(e) {
              console.log('*** Item 2-3 clicked', e);
          }
      }]
      
      }];