fix: delay use transition

[joshuaellis]

Why

• resolves useTransition does not run "leave" transition when delay is set #1662

Summary of Issue

delays are attached in the scheduleProps function where we make our paused, resume queues because scheduleProps is called in a raf loop. But the specific call to scheduleProps is from a SpringValue so that classes' _state has the information that we're actually paused and waiting for something (the delay).

However, the Controller's state doesnt have the information that it's springs are paused (this is the problem // bug) so when when we call onResolve in the useTransition hook the Controller is seen as idle, it's then removed and forceUpdate is called thus cleaning out the transitions array removing the item.

This wouldn't happen normally because the state update would cause the springs to begin animating thus the Controller would not be idle.

What

Added the isDelayed prop to SpringValue so that a Controller when checking if it's (the Controller) idle will now check that its springs are not delayed. This therefore does not remove the item and the leave animation phase can run.

Checklist

• Demo added
• Ready to be merged

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naughty-chatelet-b1o3x	Issue #1662