Refactored page resource, added ancestors key

[appsol]

Summary

https://app.shortcut.com/connectedplaces/story/4090/add-in-breadcrumbs-data-to-api-endpoint-for-pages-slug

• Refactored PageResource
• Reduced size of relationship entities parent, landing_page and children
• Added new relationship ancestors with a list of ancestors in descending order from root down suitable for breadcrumbs
• Added new include=ancestors option for the pages index api to include the ancestors relationship on all page result items

Development checklist

• Changes have been made to the API?
  • If so, the OpenAPI specification has been updated
• Database migrations have been added?
  • If so, the MySQL Workbench ERD has been updated
• The code has been linted ./develop composer fix:style

Release checklist

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create a checklist for them here.

Notes

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