DOC-3243: New argument fullpagehtml to editor.getContent() and editor.setContent() APIs to only get/set the body of the content while the full page plugin is active

[kemister85]

Ticket: DOC-3243

Site: Links to affected pages:

• 8.4.0 Release notes – Full Page HTML section
• Full Page HTML plugin – fullpagehtml option for getContent/setContent

Changes:

• Added release note entry for TINY-13744 to modules/ROOT/pages/8.4.0-release-notes.adoc (Accompanying Premium plugin changes section): New argument fullpagehtml to editor.getContent() and editor.setContent() APIs to only get/set the body of the content while the full page plugin is active.
• Created modules/ROOT/partials/configuration/fullpagehtml-getcontent-setcontent.adoc documenting the fullpagehtml option for getContent/setContent.
• Updated modules/ROOT/pages/fullpagehtml.adoc to include the new option documentation.
• Added xref from release notes to the new section.

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Pre-checks:

• Branch is correctly prefixed (release-note branch)
• modules/ROOT/nav.adoc has been updated (if applicable).
• Files have been included where required (if applicable).
• Files removed have been deleted, not just excluded from the build (if applicable).
• Files added for New product features include a release note entry.
• Major or minor version changes have updated the supported-versions.adoc table.
• Build passes without console errors, warnings, or issues.