[css-text-4] move "balance | stable | pretty" out of text-wrap #9102
Description
While discussing #3473 @fantasai pointed out that the decision of whether to wrap, and of which line breaking algo to use when wrapping ought to be separate, to cascade independently, and therefore to be separate properties.
I agree, and therefore think we should move balance | stable | pretty out of text-wrap. And likely, that new property is where we should add the new value that solves #3473 (which could be called something like avoid-oprhans).
It should be an inherited property.
As for its name, here's a first suggestion to entice people to propose something better: wrap-style