feat(ui): enhance chat UI with new components and styling

refactor(chat): improve message display and actions
feat(chat): add high contrast mode toggle
style(chat): update spacing and sizing for better readability
feat(chat): add new Section and Stack layout components
docs: add UI style guide documentation
fix(chat): improve browser connection handling in scraper
feat(settings): expand default sources and improve UI
refactor: consolidate chat page layout and components

components/chat/web-search-status.tsx

@@ -74,7 +74,7 @@ export function WebSearchStatus({
         status === 'error' && "border-l-red-500",
         (status === 'searching' || status === 'scraping') && "border-l-blue-500"
       )}>
-        <CardContent className="p-3">
+        <CardContent className="p-4">
           <div className="flex items-center justify-between gap-2">
             <div className="flex items-center gap-2 flex-1 min-w-0">
               <div className="flex-shrink-0">