refactor: migrate parsers to TS (#133)

* dev: finish top-level parsers TS migration

* dev: migrate menu renderers to TS

* chore: fix ts errors

* dev: finish ts migration 🎉

src/parser/classes/LiveChatHeader.ts

@@ -0,0 +1,19 @@
+import Parser from '../index';
+import { YTNode } from '../helpers';
+
+class LiveChatHeader extends YTNode {
+  static type = 'LiveChatHeader';
+
+  overflow_menu;
+  collapse_button;
+  view_selector;
+
+  constructor(data: any) {
+    super();
+    this.overflow_menu = Parser.parse(data.overflowMenu);
+    this.collapse_button = Parser.parse(data.collapseButton);
+    this.view_selector = Parser.parse(data.viewSelector);
+  }
+}
+
+export default LiveChatHeader;