[MC-263360] NBSP is a valid invisible character that can be used as the world name

1) Type or paste the NBSP character as the world screen name
2) Create a new world and save and quit to title to see the title as blank

Linked issues

Unable to reproduce, it's still say "Save Folder: New World"

Cannot reproduce either in 23w35a.

Can reproduce in 1.20.1 and 23w35a. NBSP character can be found here (click the copy button).

This is strange, I am still not able to reproduce this in 23w35a. I am quite sure I am using the NBSP character.

Environment dependent?

I can still reproduce this in 23w35a. I'm using a Mac if that means anything.