[FEATURE] UI: add Table\PresentationRow::withTags() - #12240

Hi all,

This PR adds a dedicated slot for Tags to the rows of the Presentation Table:

• Table\PresentationRow::withTags(Button\Tag ...$tags): static
• The Tags are rendered below the headline, in their own bar, in the collapsed and in the expanded row.
• A new Kitchen Sink example Table/Presentation/with_tags.php shows two rows, one with two and one with three Tags.

Background:

• The Jour Fixe on 2026-10-19 asked for this in the discussion of [Misconfiguration Badge](https://docu.ilias.de/go/wiki/wpage_8943_1357): tag buttons should be passed to the UI framework explicitly and rendered in a proper place, not as part of the title.
• In LearningSequence: Adaptive Learning Paths #12210 the Learning Sequence passes pre-rendered Tag HTML through withHeadline(). As @thibsy pointed out in the review, this breaks as soon as the headline is escaped, loses the rendering context and conflicts with the headline, which toggles the row on click. This PR implements the API proposed there. LearningSequence: Adaptive Learning Paths #12210 will switch to it once this is merged.
• The Tags sit below the headline and outside of it, so clicking a Tag does not toggle the row. Explanations can be attached to the Tags themselves with withHelpTopics(), which Button\Tag already supports.

withTags() is optional. Rows without Tags render exactly as before, and existing tables need no change. Only a custom class that implements the PresentationRow interface itself would have to add the method. In the core, the UI framework's own implementation is the only one, and this PR adds it there.