remove overflow hidden on body when necessary (#3636)

Author: ludoboludo

assets/theme-editor.js

@@ -39,6 +39,7 @@ document.addEventListener('shopify:section:load', () => {
 document.addEventListener('shopify:section:unload', (event) => {
   document.querySelectorAll(`[data-section="${event.detail.sectionId}"]`).forEach((element) => {
     element.remove();
+    document.body.classList.remove('overflow-hidden');
   });
 });