[UX Improvement] Configurable collapse breakpoint of the sidebar

[ieteo]

The sidebar is currently collapsing at 1024px. At 1025px, it takes up quite a large chunk of available space.

In order for better UX, could the collapse breakpoint of the sidebar be configurable, e.g.

$panel->collapsedSidebarBreakpoint('xl')

or at least the default be set to 1280px, please?

Thank you

Kind Regards
igigi