chore: clean up build steps

src/parser/classes/ExpandableTab.js

@@ -0,0 +1,16 @@
+import Parser from '../index';
+import NavigationEndpoint from './NavigationEndpoint';
+
+import { YTNode } from '../helpers';
+
+class ExpandableTab extends YTNode {
+  static type = 'ExpandableTab';
+  constructor(data) {
+    super();
+    this.title = data.title;
+    this.endpoint = new NavigationEndpoint(data.endpoint);
+    this.selected = data.selected; // If this.selected then we may have content else we do not
+    this.content = data.content ? Parser.parse(data.content) : null;
+  }
+}
+export default ExpandableTab;