Part of #397.

User story

As a journalist or editor, I want my readers to be sure that I am the author of annotations made on pieces I've published.

As a news organization, I want consistency between editor/author bylines and the names displayed in the annotation sidebar.

Feature request

Show display names in the client sidebar.

This comes from one of our partners, a major news organization. They feel it looks unprofessional to have "login-like" names showing. They want to be able to have names like:

Katelyn Lemay

...but spaces are not allowed in usernames.

Since usernames must be unique, allowing spaces in usernames would not be an acceptable solution. If a reporter's "name" is already taken as a username, that would create further problems.

I know there are larger questions surrounding what role display names should play in the client, but for now, we can scope this to the sidebar.