As an organizer, I want to be able to edit the selection of my Participant Questions, so that I can correct mistakes that I made when configuring Event Registration or that I can adapt to changes/new information that may arise that relates to information I collect (such as learning that my event participants or organizing partners do not feel comfortable collecting certain data or learning that my organizing partners actually do want to collect data that we previously opted out of collecting).
**Acceptance Criteria:**
* If an organizer has selected any Participant Questions when configuring registration,
** And if event registration has not yet closed,
*** Organizers of the event should be able to remove any Participant Questions
**** And all new participants will see no longer see the removed Participant Questions when they register
***** And responses to the questions from before the questions were removed will remain in the Participants and Response Statistics tab for the organizer to view
****** Note that we may explore if organizers can opt to remove/purge this data, but it should be a separate ticket)
***** And registered participants who answered a Participant Question prior to having the question removed can still view and edit their response, but they will no longer see the question if they unregister and then re-register for the event
* If an organizer has not selected any of the Participant Questions when configuring registration,
** And if event registration has not yet closed,
**** Organizers of the event should be able to add any Participant Questions
***** And all new participants will see the newly added Participant Questions when they register
***** And responses to the newly added Participant Questions from those who registered before the questions were added will be recorded as No Answer
****** Note that we can perhaps later distinguish between No Answer due to the question not being available vs. the participant explicitly choosing to not answer the question, but this is not required for MVP
***** And registered participants who answered a Participant Question prior to having the question added can still view and edit their responses, and they will have option to answer the newly added Participant Questions if they edit their registration