admin-editable data corrections log

[petermenzies]

It may be helpful to add a message board (or other user communication element) where users can log edits that need to be made to the data. In the past this information has been recorded mainly in google sheets, but the message board would give us a clear central log for all required edits.

[petermenzies]

Went with a datatable of corrections that users can contribute to with response_id and correction inputs. Basic framework is working - additional features needed are:

• [x] input checks
  • don't allow blank submissions
  • make sure response id exists in data
• [x] make table itself editable
• [x] way of tracking completion status

[petermenzies]

Brooke mentioned including another field for explanation of why the change was made - this should be added.