Warn when two createStyleSheet are called with the same first argument

[Olivier Tassinari]

I was wondering how we could improve the dev experience.
What do you think about this warning?

[Nathan]

Good idea, I was thinking the same thing 👍

[Olivier Tassinari]

🎉 Thanks. I have struggled a bit on this one the first time I used the lib.

[Nathan]

@oliviertassinari me too! 😄