Add Transaction ID datadog link to va.gov-specific alerts

[cilestin]

Summary

Workflow from taking a claim ID datadog link, copying a transaction id from the detail, then pasting it back into the search felt not-great. In the cases of va.gov autoestablish claim errors, add a link to the transaction id log search directly to ease some suffering.

Related issue(s)

• API-44632

Testing done

• New code is covered by unit tests

Before, only the claim ID would have a link to datadog.

Now, both the claim ID and its associated Transaction ID both have links to datadog.

What areas of the site does it impact?

Claims API slack alerting. Nothing consumer-facing.

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 (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