[Feature Request]: Gea-UI visibility with live showcase and theme builder

Hello, while browsing gea's website, I saw that **gea-ui** does not have a live showcase and the showcase is only in examples. I think gea-ui doesn't get the credit it deserves in this regard. In my opinion, **gea-ui** Showcase should be accessible on the website, and in addition to that, I am thinking of adding a feature that allows users to generate themes for **gea-ui** by changing the design tokens through the interface. Similar like https://ui.shadcn.com/create.

If you approve, i would like to contribute with this idea for Gea