Add documentation that event handlers cannot be used with more than one component.

[Latropos]

Summary

In this comment #5345 (comment):

Unfortunately, with current implementation handlers provided by useAnimatedScrollHandler or any other handlers that are an instance of WorkletEventHandler, that being: useScrollViewOffset, useEvent and useAnimatedGestureHandler (last one deprecated) are supposed to be passed to only one component. This is because their class instances keep the data of the latest component only. Passing them to multiple components leads to undefined behavior.

we mention that event handlers cannot be used with more than one component. This should be documented.

Handler	Screenshot	Where in docs
useAnimatedScrollHandler		Section "remarks"
useScrollViewOffset		Section "remarks"
useEvent		Section "returns"
useAnimatedGestureHandler	Deprecated ❌	No documentation ❌

Test plan

[tjzel]

Even though useEvent doesn't have a high-quality documentation, I think we should add it there so we don't forget it later on.

Regarding useScrollViewOffset, I think we should add to the remarks section that the animatedRef parameter there mustn't be changed. E.g.

useScrollViewOffset(someState ? animatedRef1 : animatedRef2)