styles composition with styled-components@4

[brabeji]

Hello @diegohaz!

I've realized that contrary to my first impression, reuse is not aware of styled-components@4 component extension feature. That makes predictable overriding of styles impossible, as the order of generated classes depends on component declaration/import order.

This might be out of scope for reuse if CSS properties of combined components are considered disjunct by convention, which might be a good idea.

I still see a lot of potential in this so I took a quick hack at that here https://github.com/brabeji/styled-compose

What do you think?

[diegohaz]

Awesome solution, @brabeji.

I'll be looking forward to seeing where it goes. Keep the good work.