[feat]: Better events for SpringValue.

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A clear and concise description of what the feature is

const springV = useSpringValue(0);

springV.onChange((v) => console.log(`val now be ${v}`));

Just like a to function but always request value and return nothing. And same for other events.

Why should this feature be included?

It can help to share a SpringValue to others by pass in props. Now, I can only add listener at useSpringValue.

Please provide an example for how this would work

Im trying to pass a SpringValue called seed (witch computed by mousemove) to Subcomponents, and each Subcomponents owned a SpringValue called ans.

Normally ans should be computed by seed (like using to instead a useSpringValue). But when I drag a Subcomponent, it must return to oraginal status and folow my dragging.

So I can only use .set and .start in to function to set seed value to ans and put return on a fake animad.div.

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How my animation look like

output.mp4

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And TBH, I use useSpringValue much much more than useSpring or others. I do think SpringValue should be the major hero feature, not useSpirng.