ignore keyboard warnings for the wrapper div

this element is only for mouse-users, the keyboard users
will still be able to use keyboard events on the children slider roles

resolves #112

Author: simeydotme

src/RangeSlider.svelte

@@ -809,9 +809,11 @@
   }
 </style>
 
+<!-- svelte-ignore a11y-click-events-have-key-events -->
 <div
   {id}
   bind:this={slider}
+  role="none"
   class="rangeSlider"
   class:range
   class:disabled