refactor(settings): move remaining sections into folders

- Move feature-defaults-section.tsx into feature-defaults/
- Move keyboard-shortcuts-section.tsx into keyboard-shortcuts/
- Move kanban-display-section.tsx into kanban-display/
- Move danger-zone-section.tsx into danger-zone/
- Update settings-view.tsx to import from new locations
- Update type imports in kanban-display and danger-zone to ../types
- All TypeScript diagnostics passing
- Git preserves file history with rename detection

app/src/components/views/settings-view/keyboard-shortcuts/keyboard-shortcuts-section.tsx

@@ -0,0 +1,60 @@
+import { Button } from "@/components/ui/button";
+import { Label } from "@/components/ui/label";
+import { Settings2, Keyboard } from "lucide-react";
+
+interface KeyboardShortcutsSectionProps {
+  onOpenKeyboardMap: () => void;
+}
+
+export function KeyboardShortcutsSection({
+  onOpenKeyboardMap,
+}: KeyboardShortcutsSectionProps) {
+  return (
+    <div
+      id="keyboard"
+      className="rounded-xl border border-border bg-card backdrop-blur-md overflow-hidden scroll-mt-6"
+    >
+      <div className="p-6 border-b border-border">
+        <div className="flex items-center gap-2 mb-2">
+          <Settings2 className="w-5 h-5 text-brand-500" />
+          <h2 className="text-lg font-semibold text-foreground">
+            Keyboard Shortcuts
+          </h2>
+        </div>
+        <p className="text-sm text-muted-foreground">
+          Customize keyboard shortcuts for navigation and actions using the
+          visual keyboard map.
+        </p>
+      </div>
+      <div className="p-6">
+        {/* Centered message directing to keyboard map */}
+        <div className="flex flex-col items-center justify-center py-16 text-center space-y-4">
+          <div className="relative">
+            <Keyboard className="w-16 h-16 text-brand-500/30" />
+            <div className="absolute inset-0 bg-brand-500/10 blur-xl rounded-full" />
+          </div>
+          <div className="space-y-2 max-w-md">
+            <h3 className="text-lg font-semibold text-foreground">
+              Use the Visual Keyboard Map
+            </h3>
+            <p className="text-sm text-muted-foreground">
+              Click the &quot;View Keyboard Map&quot; button above to customize
+              your keyboard shortcuts. The visual interface shows all available
+              keys and lets you easily edit shortcuts with single-modifier
+              restrictions.
+            </p>
+          </div>
+          <Button
+            variant="default"
+            size="lg"
+            onClick={onOpenKeyboardMap}
+            className="gap-2 mt-4"
+          >
+            <Keyboard className="w-5 h-5" />
+            Open Keyboard Map
+          </Button>
+        </div>
+      </div>
+    </div>
+  );
+}