Settings now opens with the design's two-column layout: a 232 wide nav
column on the left with grouped sections (General, Account, Power,
About) and a content column on the right that leads with a serif
headline, snapshot metric cards, and a "Jump in" list of every settings
route. Each nav entry and jump row deep-links to the existing internal
page so the destinations remain real.
The previous settings.rs is now a thin shim that calls into the chrome
module — keeps the module under 500 lines and lets future
sub-page redesigns share the same shell layout.