title: How modify Yii2 pagination in GridView widget to show first and last pages?
body: <p>Default view of pagination is "1, 2, 3, ..., 10"</p>
  
  <p>I need to transform it into "(first page), x, x, x, (current page), x, x, x, (last page)"</p>
  
  <p>How can I do that?</p>