🐛 Bug: Table of Contents should highlight active section while scrolling

[Adityakumar37]

Describe the bug

Current Behavior

When reading the JSON Schema documentation page, the Table of Contents on the right remains static while the user scrolls through the document.

The currently visible section is not highlighted, which makes it difficult to know where the reader is in the page.

Steps To Reproduce

1. Go to the JSON Schema website:https://json-schema.org/
2. Click on Specification from the top navigation bar.
3. In the left sidebar, under Specification documents, click JSON Schema Core.
4. Scroll down on the JSON Schema Core page until the Table of Contents appears on the right side.
5. Continue scrolling through different sections of the document.

Expected Behavior

The active section should automatically be highlighted in the Table of Contents (scroll-spy behavior), so readers can track where they are in the document.

Screenshots

No response

Device Information [optional]

- OS:
- Browser:
- version:

Are you working on this issue?

Yes

Do you think this work might require an [Architectural Decision Record (ADR)]? (significant or noteworthy)

Yes

[Adityakumar37]

@Utkarsh-123github i would like to work on this issue

[Relequestual]

I think @jdesrosiers did a fiar amount of work on the spec document display. Have any thoughts on if this is desierable?

[jdesrosiers]

No, I haven't done anything related to this and I don't have an option. It's out of my area of expertise. This one is up to the website maintainers.