Collapsible sidebar, preferably with a keyboard shortcut

[hamirmahal]

What version of starlight are you using?

latest

What is your idea?

It'd be nice if users could collapse the sidebar.

Ideally, there should be a keyboard shortcut to toggle the sidebar's state. A common one that developers may be familiar with is Ctrl + B.

If there is a collapse/expand sidebar button, the button should show this keyboard shortcut on hover.

Why is this feature necessary?

The sidebar takes up a non-trivial amount of space in portrait mode.

Do you have examples of this feature in other projects?

https://rust-lang.github.io/mdBook/ lets users collapse the sidebar by clicking on the three horizontal lines, although there's no keyboard shortcut.

Also, the button to collapse the sidebar lives outside the sidebar, which is a bit unexpected.

The button to collapse the sidebar should be in the sidebar.

Participation

• I am willing to submit a pull request for this feature.

[hamirmahal]