Bundle recommended styles

[xavierfoucrier]

Same as many other libraries (*), it would be nice to bundle the recommended styles inside the package dist folder.

This way we can safely use them like @use 'lenis/dist/styles.scss'; for example. With this kind of import, you can adjust recommended styles when a new package version is released.

(*) I know that lenis is not like no other libraries 🤘🕶️