Settings is split into navigable categories (left sidebar ≥820px wide,
pick_list dropdown below) instead of one long scroll. Integrated with the
wishlist branch's hotkey editor by giving it its own "Hotkeys" category
(7 categories total: Audio, Hotkeys, Recording, Profile, Appearance,
Network, Notifications).
Conflict resolution: the wishlist branch had inserted a Hotkeys section
into the old long-scroll between Microphone and Recording; relocated it
into a dedicated SettingsCategory::Hotkeys arm and updated the category
stability test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>