John conroy/sort by pub CAT-970

Summary

Sorts by publication_date to put published data at the top, then by mapped_status.

[x] Code follows the project's coding standards
- [x] Lint checks pass locally
- [x] New CHANGELOG-your-feature-name-here.md is present in the root directory, describing the change(s) in full sentences.
[x] Unit tests covering the new feature have been added
[x] All existing tests pass
[x] Any relevant documentation in JIRA/Confluence has been updated to reflect the new feature
[x] Any new functionalities have appropriate analytics functionalities added