VACMS-15641: Adds 'add to National Outreach Calendar' checkbox

[dsasser]

Relates to:
department-of-veterans-affairs/va.gov-cms#15856
department-of-veterans-affairs/va.gov-cms#15641

Description

In department-of-veterans-affairs/va.gov-cms#15761 we are adding a new field to the CMS to support adding an Event to multiple Event Listings, without changing the cardinality of field_listing to unlimited.

This PR adds the additional field query to the existing Event List GraphQl query, and assembles the data together before handing off to the event listing, providing the related feature toggle is enabled.

Relates to:
department-of-veterans-affairs/va.gov-cms#15641

Testing done & Screenshots

Jill and Laura tested this end-to-end along with the CMS changes in Tugboat.

QA steps

Use this Tugboat instance for QA testing: https://web-hslpokhhcwuf19pbvpxpq3ppmlpldumq.demo.cms.va.gov/

1. Visit /outreach-and-events/outreach-materials/
   • Verify publications are rendering/present
2. Visit /alaska-health-care/stories/learn-how-to-cook-with-healthy-teaching-kitchen
   • Verify the 'See all stories' link is present and points to the correct location.
3. Visit /lovell-federal-health-care-va/events/
   • Verify events have correct and functioning URLs for both types of pages (tricare && beneficiary)

Acceptance criteria

• Tests are passing
• Outreach Materials page displays publications
• VAMC Stories (example) -- "See all stories" link is present at the foot of the page.
• Lovell events are not affected

[chriskim2311]

Approved, tested in tugboat env everything looks good on my end