Add usage and response counts to get guestbooks list

[stevenwinship]

What this PR does / why we need it:Currently, the GET Guestbook API returns metadata about guestbooks (e.g., name, required fields, custom questions), but it does not include usage and responses, needed for Manage Guestbooks table

Which issue(s) this PR closes:#12260

• Closes API: Enhance GET Guestbooks with usage count and response count fields #12260

Special notes for your reviewer:

Suggestions on how to test this:

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

Is there a release notes update needed for this change?: Included

Additional documentation:

[scolapasta]

Left one comment about the default for discussion.

Also branch is out of date.

[coveralls]

coverage: 24.889% (+0.002%) from 24.887% — 12260-get-guestbook-with-usage-and-response-counts into develop

Addressed

[github-actions]

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