* fix(navbar): navbar on small screen now follow menu.main from hugo.yaml
* fix(navbar): align mobile sidebar with menu.main order and labels
* refactor(sidebar): simplify mobile menu item selection logic
* fix(sidebar): avoid empty nested containers in mobile nav tree
* fix(sidebar): align nested chevrons with top-level items
* chore(css): update compiled CSS
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Co-authored-by: Xin <5097752+imfing@users.noreply.github.com>
Co-authored-by: Xin <xin@imfing.com>