all these changes

frontend/node_modules/dom-helpers/cjs/toggleClass.js

@@ -0,0 +1,24 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+
+exports.__esModule = true;
+exports.default = toggleClass;
+
+var _addClass = _interopRequireDefault(require("./addClass"));
+
+var _hasClass = _interopRequireDefault(require("./hasClass"));
+
+var _removeClass = _interopRequireDefault(require("./removeClass"));
+
+/**
+ * Toggles a CSS class on a given element.
+ * 
+ * @param element the element
+ * @param className the CSS class name
+ */
+function toggleClass(element, className) {
+  if (element.classList) element.classList.toggle(className);else if ((0, _hasClass.default)(element, className)) (0, _removeClass.default)(element, className);else (0, _addClass.default)(element, className);
+}
+
+module.exports = exports["default"];