✨ Sidebar should be revealed when mousing to edge of screen in full screen when hidden

[austincondiff]

Description

When the user takes CodeEdit full screen, after hiding the sidebar, it should temporarily reveal the sidebar while hovering over the sidebar. When mousing out it should disappear.

Additional Context

I am not sure if this is a built-in feature or it is custom but it seems to happen to all of Apple's apps like Finder, Mail and Calendar.

[!NOTE] This works as expected (at least for the left sidebar) if the new windowing mode feature flag is on, but this breaks other things such as the Source control navigator list item heights are now too tall and file saving seems to break. Ideally we could get the new windowing mode working properly.

Screenshots

https://github.com/CodeEditApp/CodeEdit/assets/806104/594d30d0-bd66-4061-8faf-9b2e845f22b3

https://github.com/CodeEditApp/CodeEdit/assets/806104/c24e6172-34d0-48cc-87d2-b12a4e8dfbfe

[itjustcrashed]

I think calendar only does this because it has no sidebar button.