added user menu in chat window creation code

chatto/src/main/javascript/ts/src/view/ChatView.ts

@@ -36,6 +36,12 @@ export class ChatView implements Observer {
 		this._markdownService = deps.markdownService;
 		this._encryptionService = deps.encryptionService;
         this.addEventListeners();
+
+        $(document).ready(function() {
+            $('#action_menu_btn').click(function() {
+                $('.action_menu').toggle();
+            });
+        });
     }
 
     update(data: ChatMessageViewModel[]): void {