[scroll-animations-1] Consider adding a timeline range that takes ink overflow into account

[noamr]

Following up on #8282, scroll-driven animation primitives like view() are useful for any scroll-related behavior, such as setting view-transition-name only when an element is in the viewport.

However, when implementing a precise user-experience, the fact that view() doesn't account for ink overflow leaves some inaccuracies - it's impossible to precisely tune the behavior such that it will be different when the entire element (including its ink overflow is within/outside the viewport).

Using a timeline-range for it might be useful, though we have to take into account that ink overflow is somewhat platform specific.

[flackr]

I think providing an ink overflow based view range can be deferred for future work.