Enhancement: Enable Folder Search When Adding Supademos to a Showcase or Demo Hub

Currently, adding a Supademo to a Showcase or Demo Hub is cumbersome.

It would be helpful to have the ability to search for Supademos by keyword and to browse existing folders to see which Supademos are stored within them. This would make it easier to select the right Supademos and significantly streamline the process of creating Showcases and Demo Hubs.