Group controls into a single ellipsis (⋮) dropdown

• Using a small, default, tertiary icon button for List actions
  • On hover display the List actions tooltip
  • Button appears on all list except the Closed list as this can not be edited
• The options in the menu would be:
  • Add new issue (except in the closed list as new issues may not be added) - triggers the new issue card with no change to the current experience
  • Edit list settings (except in the open and closed list as these can not be edited) - triggers the list settings drawer with no change to the current experience

List Actions