Switch to new CK5 page format for modern pages

[heinrich-ulbricht]

Background:

Microsoft started updating its page editor around the end of 2023 and continued improving it throughout 2024. Pages that are or have been created in the previous format are updated as soon as they go into edit mode the first time. You see that with migrated pages as there will be a small delay the first time you edit a page. This is JavaScript running and upgrading the page to the latest version.

Here's a list of adjustments necessary to be compatible with the new page editor version:

• Adjust table generation
• Adjust text paragraph styles to get proper margins
• Adjust inline image generation in general
• Improve inline image scaling logic as this has changed between the page editor versions

[heinrich-ulbricht]

First release to implement this is v1.24 - see release notes for details.