Add "No Milestone" as a choice for saved board config
Description
- Allow "No Milestone" as an available choice when setting the board config, i.e. https://gitlab.com/gitlab-org/gitlab-ee/issues/2518.
- Thus, this finds issues that do not have a milestone.
- This is for both project boards and group boards.
- Note that this is already available in the board filter itself. (The search bar filter.) But it is not available in the saved config yet.
Edited by Chris Peressini