Enhance SimpleUploadButton component with disclosure management

Commit notes

This commit updates the `SimpleUploadButton` component to incorporate a disclosure mechanism for better UI interaction. Key changes include:

- **Disclosure Hook:** Added `useDisclosure` to manage the open/close state of the menu. - **Menu State Management:** Updated the `Menu` component to reflect the disclosure state, allowing for improved user experience. - **File Handling Improvements:** Ensured that the menu closes after file selection or folder change, enhancing usability.

These changes aim to streamline the file upload process and improve the overall user interface.