UI Issue: Connector Selection Overflow on Document Sets Page

[alex-feel]

I've encountered a user interface issue on the Document Sets management page. When attempting to add or edit a Document Set with numerous sources (connectors), the selection window fails to display all connectors and the 'Update!' button due to lack of screen space, with no scroll bar available.

Currently, the only workaround is to reduce the browser's zoom level (Ctrl + Mouse Wheel Scroll) to fit all elements on the screen. However, this is not an intuitive solution for users.

Could we look into adding a scroll bar to the connector selection modal to accommodate users with extensive connector lists?