Added visible style modifier

[samedit66]

Hello! While reading the README, I noticed that there was no style modifier called visible mentioned anywhere. I added it, along with some tests for it

[bluenote10]

Could you clarify what that means, or give some context?

I don't really understand what "visible" is supposed to do, because everything is "visible" already 🤔

Does the upstream chalk have this feature?

[samedit66]

Sure. The picture below I took from the README of yachalk. Maybe I'm a bit blind but before my PR there was no such feature in yachalk source code. Speaking about chalk, its README also mentions visible in the same section as yachalk README does: https://github.com/chalk/chalk?tab=readme-ov-file#styles

[bluenote10]

Ah, thanks for the hint -- my eyes somehow didn't see "visible" I guess 😂

The name is a bit strange, if I were to name it I'd go for chalk.red.ifpossible("foo"), but let's stick to chalk and the copy/pasted readme.

I'll briefly close/re-open the PR in an attempt to trigger CI, which for some reason got deactivated...

[bluenote10]

Looks like there was a minor linter failure...

[bluenote10]

Thanks for the contribution!

I've just published version 0.1.8 on pypi which includes this change.