add "question type" to metadata form
Context
On the Dashboard and Discover pages users should see the "question type" of each question and users also need to be able to filter by this value on the Discover page, but we don't capture this info explicitly at the moment. Each question should only have one question type.
Proposal
Add "Question type", a required field, as a dropdown (single select) to the metadata form with the same options as currently done on the discover page filter.
Design
"Question type" should be the first item in the form, above "Topic":