title: How do I set the ComboBox width to fit the largest item
body: <p>I would like that my <code>ComboBox</code> has to adapt its <code>width</code> to the longest <code>String Item</code> of my list.</p>
  
  <p><em>Code Example:</em></p>
  
  <pre><code>ComboBox {
      model: [ "Banana", "Apple", "ThisIsTheLongestWordThatIHave,"Coconut" ]
  }
  </code></pre>
  
  <p>Any idea of how to do it?</p>