Add user-drag css option to plugin.

[ziimakc]

Can you please add user-drag css option to plugin, so it will not show an error?

I use it like this:

  a {
    user-drag: none; 
  }

It's works in chrome and safari as i know.

[mjbvz]

Closing as this package has been deprecated in favor of the official styled-components/typescript-styled-plugin fork

After updating to that fork, follow up in the styled-components repo if this is still an issue