Add Archived to archived labels tooltip

What does this MR do and why?

Add "Archived" tooltip to archived label chips

Archived labels now show a muted "Archived" line in their tooltip.

• Move the HTML tooltip mechanism from EE (where it renders the scoped-label line) into CE, so it also covers archived labels.
• Cover both rendering paths: the Banzai reference filter (activity stream, comments) and the server-side render_label helper.
• Scoped and archived tooltip lines render independently.

🛠️ with ❤️ at Siemens

References

• Archived labels (#4233)
• #4233 (comment 3262978218)

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Go to your test project
2. Create a new work item
3. Create a new label called bug-test
4. Apply the bug-test label to the issue
5. Archive the label (Manage -> Labels -> Archive on Dot menu)
6. Verify the tooltip by hovering over the bug-test label on the issue

Expected result: Tooltip shows the label description (if present) with muted "Archived" text on a new line For EE: Create a scoped label (e.g., type::bug), archive it, and verify the tooltip shows both "Scoped label" and "Archived" lines.

MR acceptance checklist

checklist

• Changelog entry added, if necessary
• Documentation created/updated via this MR
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the javascript style guides
• Conforms to the database guides

Related to #4233