fix(sagemaker): Add code-editor subdomain to refreshUrl

[aws-asolidu]

Problem

-All space reconnection redirect links were hardcoded to route users to the JupyterLab details page, due to a bug in the Studio web application.

Solution

• With the bug now fixed in SageMaker Studio, we can support redirecting to the Code Editor details page via refreshUrl.
• For backward compatibility, the default remains set to JupyterLab. Once the fix is verified and rolled out across all regions, we can remove the default behavior and instead explicitly check for the appType (e.g., JupyterLab) before setting the redirect.

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[amazon-inspector-ohio]

⏳ I'm reviewing this pull request for security vulnerabilities and code quality issues. I'll provide an update when I'm done

[github-actions]

• This pull request modifies code in src/* but no tests were added/updated.
  • Confirm whether tests should be added or ensure the PR description explains why tests are not required.
• This pull request implements a feat or fix, so it must include a changelog entry (unless the fix is for an unreleased feature). Review the changelog guidelines.
  • Note: beta or "experiment" features that have active users should announce fixes in the changelog.
  • If this is not a feature or fix, use an appropriate type from the title guidelines. For example, telemetry-only changes should use the telemetry type.

[amazon-inspector-ohio]

✅ I finished the code review, and didn't find any security or code quality issues.