Running two instances of styled components causes class name clashes

[mcissel]

We need to be able to namespace each instance, like
https://styled-components.com/docs/tooling#namespace

The problem is that hashing does not create unique classnames between instances. It's a known issue that was solved using the babel plugin. This plugin needs that as well, so we can use typescript.

[numonium]

I'm running into this issue on multiple sites that use styled-components 👍