Move the repository "Publishing" option to the "Basics" panel in repository management

Summary:
Depends on D20424. Ref T13277. Now that the "Actions" panel only has one item ("Publishing"), just move it to the "Basics" panel.

Update the UI to show active/publishing status more clearly and relate them to one another and importing state.

Test Plan:

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13277

Differential Revision: https://secure.phabricator.com/D20425