feat: add multiple way to show collections and links

app/user/lib/index.ts

@@ -0,0 +1,12 @@
+import { type DisplayPreferences } from '#shared/types/index';
+import User from '#user/models/user';
+
+export function ensureDisplayPreferences(user: User): DisplayPreferences {
+	const defaults: DisplayPreferences = {
+		linkListDisplay: 'grid',
+		collectionListDisplay: 'list',
+	};
+
+	user.displayPreferences = { ...defaults, ...user.displayPreferences };
+	return user.displayPreferences;
+}