[FIX] web_editor: properly position image handle in product configurator

The image handle (grey overlay over the image) was not properly
repositioning on scroll in the product configurator (a side effect of
not having a popover).

closes odoo/odoo#31226

addons/web_editor/static/src/js/wysiwyg/plugin/media.js

@@ -90,6 +90,9 @@ var MediaPlugin = AbstractPlugin.extend({
             return;
         }
         if (!this.options.displayPopover(target)) {
+            if (dom.isImg(target)) {
+                this.context.invoke('HandlePlugin.update', target);
+            }
             return;
         }