all these changes

frontend/node_modules/dom-helpers/esm/isVisible.js

@@ -0,0 +1,8 @@
+/**
+ * Checks if a given element is currently visible.
+ * 
+ * @param node the element to check
+ */
+export default function isVisible(node) {
+  return node ? !!(node.offsetWidth || node.offsetHeight || node.getClientRects().length) : false;
+}