View owner in card details
Created by: andrew-codes
As a developer, I want to see who the owner of a card when I am viewing the card's details, so that I know who to talk to about the card's feature.
- Given a card has an owner, when viewing the card's details, then it should display the avatar of the owner user on the card's details
- Given a card has no owner, when viewing the card's details, then it should display a blank user avatar and the text "Not Assigned" on the card's details