Add buttons to search for लकारs

Could you add a navigation dropdown menu (or a set of buttons) in the धातुपाठः section to make it easy to quickly switch between different लकारs (e.g., लट्, लिट्, लुङ्, etc.) without scrolling or searching manually?

<img width="890" height="1554" alt="Image" src="https://github.com/user-attachments/assets/e7e5cf18-db92-4271-8329-61d1c738c7af" />