Automatically close the sidebar when navigating sections on mobile

[mcky]

I've been reading quite a few ExDoc sites from my mobile lately and I've found it slightly frustrating that clicking on some headings causes a full page change and the nav is closed, but within a module the sidebar stays open and it's unclear that you've even navigated

An example of the previous behaviour:

CleanShot.2025-03-17.at.22.31.00.mp4

[DavidOliver]

@josevalim, is it okay with you to have the nav bar close on nav link click when mobile/narrow viewport?

Edit: sorry, I didn't see this is a pull request and not just an issue. Ignore me. Thanks, @mcky.

[josevalim]

@DavidOliver i am 80% sure this was the case in the past and it was changed because it would be undesired in many cases. It can double check later.

[github-actions]

📦 Docs artifacts are ready: https://github.com/elixir-lang/ex_doc/actions/runs/13911569984/artifacts/2768744820

[josevalim]

Given we always close when navigating away, I think we should remain consistent, so let's give it a try!

[josevalim]

💚 💙 💜 💛 ❤️

[mcky]

Thanks folks! 🥳