27.6-RC3

Changes compared to: 27.6-RC2

Non user facing:

• Removes a stale Black Friday 2025 image from the release artifact, shrinking the plugin zip by ~207 KiB. #23216
• Fixes an unreleased error where p tag would be renderend inside a p tag. #23211
• Fixes an unreleased bug where reordering sections in the content planner outline via drag-and-drop did not work correctly for the last item and adds focus styling. #23206