DOC: Documentation side navigation bar loses scroll position on option selection

[Aloqeely]

Pandas version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

Any page with the side navigation bar (e.g. https://pandas.pydata.org/docs/reference/index.html)

Documentation problem

When clicking on an option in the side navigation bar, the page content updates and the scroll position in the sidebar jumps to the top.

Suggested fix for documentation

The scroll position in the sidebar should remain unchanged after selecting an option.

[rhshadrach]

Is this feasible to change? We're loading a new page, not updating an iframe or something like that.

cc @datapythonista

[Aloqeely]

I don't know much about sphinx or web development, but I think this should be doable since it doesn't happen in other libs' docs (e.g. numpy)

It's really frustrating when you're trying to view subsequent options in the docs.

[rhshadrach]

it doesn't happen in other libs' docs (e.g. numpy)

Thanks! NumPy is also using the pydata_sphinx_theme, so it does look hopeful that this can be resolved. Further investigations and PRs to fix are welcome!