Add rulemaking document sorting logic and tests

[tmpayton]

Summary (required)

• Resolves Correct document sorting logic in the rulemakings documents list #6524

This PR adds the front end sorting logic to the api.

Sorting rules:

• No tier documents:

  • Sort by doc date in descending order (no changes needed)

• Level 2 or 3 documents:

  • Sort by date ascending (no changes needed)

• Level 1 documents:

  • Sort by date descending with tier precedence as tie breaker
  • If a document does not have a date use the last sub-doc’s date otherwise use today

Required reviewers 1 - 2 devs

Impacted areas of the application

General components of the application that this PR will affect:

• rulemaking endpoint

How to test

• Compare API results to cms on dev. The document order should match.

Test URLS:

https://fec-dev-api.app.cloud.gov/v1/rulemaking/search/?rm_no=2005-02
https://dev.fec.gov/legal/rulemakings/2005-02/?doc_id=1229

https://fec-dev-api.app.cloud.gov/v1/rulemaking/search/?rm_no=2006-01
https://dev.fec.gov/legal/rulemakings/2006-01/?doc_id=7749

https://fec-dev-api.app.cloud.gov/v1/rulemaking/search/?rm_no=2014-01
https://dev.fec.gov/legal/rulemakings/2014-01/?doc_id=305653

https://fec-dev-api.app.cloud.gov/v1/rulemaking/search/?rm_no=2024-01
https://dev.fec.gov/legal/rulemakings/2024-01/?doc_id=425540

https://fec-dev-api.app.cloud.gov/v1/rulemaking/search/?q=%22REG%202013-04%22&q_proximity=Weintraub%20voting%20affirmatively&q_proximity=Commissioners%20Goodman&max_gaps=3&doc_category_id=1

https://fec-dev-api.app.cloud.gov/v1/rulemaking/search/?rm_no=2011-02&q=%22postal%20service%20address%20of%20a%20commenter%22