Issues triage sprint for pyxform

Thanks for facilitating a great session at the recent convening, @Ukang_a_Dickson! Even though it was the very last session on the very last day and we were all tired, we got a lot done. All issues have been updated accordingly.

I enjoyed both the in-person session and the call. It's energizing to collaborate in real time! :smiling_face_with_three_hearts: