Fix tabs in 2.496

[janfaracik]

Bootstrap tabs have different markup in comparison to tabs in core. This led to a regression in plugins that use Bootstrap 5 when jenkinsci/jenkins#10198 was merged. The markup in core should probably be updated to align with how Bootstrap does it, seeing as that seems to be more semantically correct (but that'd be a much larger change).

Before

After

Unsure if we want to release for 2.496 and above now, or wait for the next LTS @uhafner

Testing done

• Coverage report works as expected

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[uhafner]

I think it makes sense to release a version that contains in the POM

<jenkins.version>2.496</jenkins.version>

Then everybody on weekly gets these changes right now.

[uhafner]

I tried it locally now and the selection works again! Thanks for fixing.

One thing that is still different to the LTS: In multiline mode the tabs container has a half-sized circle as a border while in LTS this is a rectangle with rounded borders.

Is there one property missing? (Left is new, right is LTS).

This leads to:

[janfaracik]

I tried it locally now and the selection works again! Thanks for fixing.

No worries :)

One thing that is still different to the LTS: In multiline mode the tabs container has a half-sized circle as a border while in LTS this is a rectangle with rounded borders.

Is there one property missing? (Left is new, right is LTS).

This leads to:

That should be fixed in the next weekly - it's just been recently merged jenkinsci/jenkins#10312

[uhafner]

❤️