Add a `grey` props to easially generate some grey variants of the icon (maybe think to a more general props `variant` and define its type). <img width="266" alt="Screenshot 2023-06-19 at 15 51 29" src="https://github.com/datalayer/icons/assets/226720/0ed08201-4e1e-45c0-950a-167aca0c23d3">
Add a
greyprops to easially generate some grey variants of the icon (maybe think to a more general propsvariantand define its type).