fix(jump-links): non-contiguous content

[tejas161]

What I did

1. Demo File for rh-jump-links (scenario:- non-contiguous content)

Testing Instructions

Notes to Reviewers

See #2474 for more info.

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Latest commit: 430d1b7

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[bennypowers]

@tejas161 test this by pulling latest commit and running

npm ci
npx patch-package
npm run dev

[tejas161]

Thanks @bennypowers for pushing the fix ! Here is what I observed:

1. When scrolling down, the active rh-jump-link seems incorrect — it highlights the section that's near the bottom of the viewport.
2. When scrolling up, the active rh-jump-link behaves correctly — it highlights the section at the top.

Would it be possible to always target the section at the top of the viewport, similar to the behavior shown here: https://ux.redhat.com/elements/jump-links/demo/nested/?

Let me know what you think!

Attaching video of observed behaviour:-
https://github.com/user-attachments/assets/b9f55df6-d1d5-4ecc-af29-4d252bf9c9dd

[bennypowers]

This isn't quite ready yet. @tejas161 ' most recent feedback on https://deploy-preview-2471--red-hat-design-system.netlify.app/elements/jump-links/demo/non-contiguous-regions/#chapter-5

Also, when scrolling all the way to the bottom, the last rh-jump-link doesn't get highlighted as active.

This is fixed
I noticed that sometimes when clicking an rh-jump-link, the active state gets applied to the previous link instead of the one clicked
I was able to reproduce this again, attaching the screen recording here

Screen.Recording.2025-08-06.at.17.28.10.mov

@adamjohnson can you give this a whack in patternfly/patternfly-elements#2920?