[rewrite] Added shadcn ui to frontend and slightly tweaked backend

frontend/src/routes/_authenticated/settings/display.lazy.tsx

@@ -0,0 +1,6 @@
+import { createLazyFileRoute } from '@tanstack/react-router'
+import SettingsDisplay from '@/features/settings/display'
+
+export const Route = createLazyFileRoute('/_authenticated/settings/display')({
+  component: SettingsDisplay,
+})