♻️ Rename Person to Participant in all relevant files

[znatty22]

No description provided.

[dankolbman]

Should probably go back and redo commit with git mv (I don't think it can be patched?). Otherwise it's going to be a lot of fun rebasing our other branches :p

[znatty22]

So I tried git mv, but the git log looks the same. I think git actually automatically did the rename in my first attempt as well so there's no difference. Let me know if if you think there's a better approach?

[dankolbman]

Still rebases fine, and we don't have anything to rebase that makes changes on the participant/person, so should be ok..

I think the proper way to do it is to commit the move and modifications in separate commits, but it's functionally equivalent.