Alphabetize list of photographers/artists when editing images on Wagtail #191
Description
When uploading or editing a photo onto Wagtail, the dropdown list of photographers is currently organized by when the person was added as a contributor. Alphabetizing (by first name) would make it much easier to find and add photographers. Also, having the text in the dropdown box animate what is being typed (if someone is typing out a photographer's name instead of going through the list) would be helpful and a good usability practice.