The Settings page packed 13 tab buttons into a single horizontal nav
that overflowed even at 1440px — items wrapped or got clipped, and
"Webhooks" disappeared off the right edge entirely. Pattern was the
right call at 5 tabs and broken at 13.
Replaces the flat row with the macOS Settings / Stripe / GitHub pattern:
- **Desktop (lg+)**: 220px sticky left rail with five labelled groups —
General, Display, Privacy & Security, Integrations, System — and a
lucide icon next to every item. Active state uses the existing primary
token. Adds a section header on the right pane that echoes the active
item so the context is obvious after a switch.
- **Mobile (< lg)**: native <select> with <optgroup> per category. One
tap to switch, no horizontal scroll, screen-reader friendly.
Categories chosen to be balanced (avg 2.6 items/group) and to map to
how admins actually think about these settings rather than alphabetical
or insertion order. Ports the existing inline-fallback i18n pattern for
the new group labels.