fix: create __generated__ folder if it doesn't exists

[kisickilukasz]

fixes #7631 and #7629

[kisickilukasz]

Hi everyone. This is my first ever open source contribution. I've tried and read a lot about how to contribute and hopefully done everything right but please let me know if I missed something

[dswilson4]

@kisickilukasz This got the build working for me, nicely done

[dswilson4]

@cbachmeier @zzmp @JFrankfurt Hopefully could get eyes on this, the issue this fixes affects developers building the repo/running yarn for the first time.

[0xMazout]

You should really consider this pr, it works well and has unblock me. nice work @kisickilukasz

[fireflydex]

Spent 3 hours trying to deploy on Netlify. This PR solved my issues. Please merge 🙂

[umershaikh123]

fixes #7631 and #7629

This isn't working for me :(

[kadetXx]

This works like a charm, why isn't it merged yet, please merge. Welldone @kisickilukasz

[kzKallisti]

Creating the dir manually (same effect as this PR) fixed the build issue for me. Please merge this PR.