fix: fix broken / missing closing HTML tag

Author: bolt-bot

packages/uikit-workshop/src/html/partials/iframe.html

@@ -8,8 +8,8 @@
 
         <div class="pl-c-viewport__resizer pl-js-resize-container">
 
-            <div class="pl-c-viewport__resizer-handle pl-js-resize-handle" />
-            
+          <div class="pl-c-viewport__resizer-handle pl-js-resize-handle"></div>
+
         </div><!--end pl-c-viewport__resizer-->
 
     </div><!--end pl-c-viewport__iframe-wrapper-->