Update command icon

icons/command.svg

 <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-  <path d="M17.5,4h0A2.5,2.5,0,0,0,15,6.5v11A2.5,2.5,0,0,0,17.5,20h0A2.5,2.5,0,0,0,20,17.5h0A2.5,2.5,0,0,0,17.5,15H6.5A2.5,2.5,0,0,0,4,17.5H4A2.5,2.5,0,0,0,6.5,20h0A2.5,2.5,0,0,0,9,17.5V6.5A2.5,2.5,0,0,0,6.5,4h0A2.5,2.5,0,0,0,4,6.5H4A2.5,2.5,0,0,0,6.5,9h11A2.5,2.5,0,0,0,20,6.5h0A2.5,2.5,0,0,0,17.5,4Z"/>
+  <path d="M18,3h0a3,3,0,0,0-3,3V18a3,3,0,0,0,3,3h0a3,3,0,0,0,3-3h0a3,3,0,0,0-3-3H6a3,3,0,0,0-3,3H3a3,3,0,0,0,3,3H6a3,3,0,0,0,3-3V6A3,3,0,0,0,6,3H6A3,3,0,0,0,3,6H3A3,3,0,0,0,6,9H18a3,3,0,0,0,3-3h0A3,3,0,0,0,18,3Z"/>
 </svg>
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