[FEATURE] UI: add Column\Listing component

[thibsy]

Hi all, this

Introduces a new UI\Component\Table\Column\Listing component, which accepts an UI\Component\Listing\Unordered or …\Ordered component. To keep rows consistent a expand/collapse mechanism was put in place, truncating list items at some point if used inside a table column.

This makes the UI\Component\Table\Column\LinkListing component obsolete, which has been removed during this process. Usages in ILIAS were updated to use the new listing component instead.

This supersedes #9522 and takes over the work on behalf of @kergomard during his absence.

Kind regards,
@thibsy

[thibsy]

@oliversamoila this should be good to go now, I added the JF label to confirm the interface at JF and notify about the possible breaking changes (removal of Column\LinkListing).

[thibsy]

Quick demo of the current state:

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[matthiaskunkel]

Jour Fixe, 13 JUL 2026: Thibeau notified us about this new UI component that replaces the former and only to links restricted LinkListing UI element. We highly appreciate this suggestion and accept it for trunk. Thibeau checked already the current usages of LinkListing and will replace them by the new component.
But developers of plugins who are currently using LinkListing have to change to the new component by their own when updating ILIAS 12 compliant plugins.
If no authority with components that using the LinkListing objects until end of the week, Thibeau will take care of these usages.
We highly appreciate this suggestion and accept the PR for trunk.