Website editors can now create eLearning channels directly from the website and use a clearer upload flow for different slide types. The update also adds customizable webpage lessons and external slide links, making online course content easier to build and enrich.

This merge provides new modal to create slide channel from the 'New' website
menu, like blogpost or forum. It also improves the upload slide widget from
channel homepage.

This merge also brings new slide type 'webpage'. This allow user to create
completely customized content as a slide.

This merge is linked to Task-1938643. More generally it is linked to the
eLearning feature [1]. For more details see subcommits.

[1] see task ID 1902304 (main eLearning task) PR #29876

This update adds automated checks for date and comparison filters in accounting reports, helping ensure report periods and comparisons stay accurate. It also reorganizes related report option handling, which supports more consistent behavior across financial reports without changing day-to-day workflows.