title: How to make Yii2's checkbox label not clickable?
body: <p>I need to disable the possiblity to check the checkbox by clicking on the label. User should be able to check the checkbox only on clicking the box itself. I need to assign different action to click on label. How should I do that?</p>
  
  <p>This is my code atm:</p>
  
  <pre><code>echo $form-&gt;field($model, 'accept')-&gt;checkbox(['template' =&gt; '{input}{beginLabel}{labelTitle}{endLabel}']);
  </code></pre>
  
  <p>That is something that supposed to work in Yii 1.x, but is not working in Yii2.</p>