MHV-41829: Adjustments made to thread api

[mattwrightva]

Summary

The parameters that the MHV API accepts for the thread list call have been moved from the path to query parameters. Some model changes were made as well to match response changes from the MHV API.

Related issue(s)

https://vajira.max.gov/browse/MHV-41829

Testing done

The thread list tests were adjusted for this change.

Screenshots

No UI changes

What areas of the site does it impact?

This impacts the VA.gov MHV SM API folders and threads endpoints.

Acceptance criteria

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No error nor warning in the console.
• Events are being sent to the appropriate logging solution
• Documentation has been updated (link to documentation)
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Feature/bug has a monitor built into Datadog or Grafana (if applicable)
• If app impacted requires authentication, did you login to a local build and verify all authenticated routes work as expected
• I added a screenshot of the developed feature

[robertbylight]

Looks good

[mmoyer-va]

The parameters changed -- now they are "pageNum" and "pageSize."