refactor(admin): remove legacy menu editor

src/lib/admin-nav-config.ts

@@ -3,8 +3,8 @@ import type { AdminNavGroup } from "@/lib/admin-nav";
 /** website_settings key storing JSON overlay for the admin sidebar. */
 export const ADMIN_NAV_CONFIG_KEY = "admin_nav_config";
 
-/** Hrefs that cannot be hidden (dashboard + menu editor). */
-export const ADMIN_NAV_PINNED_HREFS = new Set(["/admin", "/admin/menu"]);
+/** Hrefs that cannot be hidden (dashboard). */
+export const ADMIN_NAV_PINNED_HREFS = new Set(["/admin"]);
 
 export type AdminNavConfig = {
 	/** Group labelKeys in display order. Missing groups append in catalog order. */