The previous commit added body.has-dev-banner shifts for .sidebar and
.apps-layout assuming they were position:fixed top:60 like the topbar.
They aren't — on desktop both sit in flex flow (.sidebar is
position:relative, .apps-layout is just a flex container), so
top:96px pushed the sidebar 96px down from its natural slot, leaving
a big visible gap above the category list.
Scope the sidebar nudge to the mobile media query where it actually
becomes fixed (also covers .sidebar-container, the unified apps
layout's mobile drawer). Replace the wrong .apps-layout top rule with
a height tweak — it sizes itself off (100vh - 60px) and was overflowing
the viewport by 36px when the banner was on; calc(100vh - 96px)
accounts for the banner.
Topbar shift (top:0 → 36) stays unchanged; that one was correct.
Signed-off-by: librelad <librelad@digitalangels.vip>
00a76e86de