title: rails simple_form checkboxes reorder
body: <p>I use </p>
  
  <pre><code>= f.association :some, as: :checkboxes
  </code></pre>
  
  <p>and got checkboxes like <img src="https://i.stack.imgur.com/DUAcd.png" alt="enter image description here"></p>
  
  <p>But I need to reorder by alphabet and draw by columns</p>
  
  <p>I try to reorder with js by counting columns, but faced with situation hen some labels stay near each other in one row, when label no enough long. Maybe js wrong idea and such task can solve by simple_form</p>