What is the state of the stats screen?

[zepumph]

I believe work on this sim was stopped pretty abruptly. I wonder what it would take to get this ready for production again. Are we abandoning the Stats screen? If so, it should be removed and things cleaned up. Not sure what the timeline is here, but I just ran into a type error in StatsModel.ts for phetsims/axon#452 that I had to understand and fix, and so was wondering what the plan is for this sim. Let's start with @matthew-blackman and go from there.

[matthew-blackman]

Now that PDL and PSD are published, it makes sense to renew efforts here. The sim is still slated for data fluency work, and I believe the Stats screen is the most reasonable and modular way to do that.

There are also significant improvements to PhET-IO and a partially-completed TS conversion to push over the finish line as part of the remaining tasks to complete here.

Let's discuss this in the upcoming data fluency planning meeting. There are several sims on the agenda, and I think this one should have high priority since it was indeed stopped abruptly once PDL work began. I'll post an update here - let's keep this issue open for now.