Fix App.jsx two-page workflow JSX render and update study app layout

node_modules/xml-js/lib/array-helper.js

@@ -0,0 +1,11 @@
+module.exports = {
+
+  isArray: function(value) {
+    if (Array.isArray) {
+      return Array.isArray(value);
+    }
+    // fallback for older browsers like  IE 8
+    return Object.prototype.toString.call( value ) === '[object Array]';
+  }
+
+};