refactor: rename 'Konten' to 'Artikel' and add submenu for article management

app/configs/meta.ts

@@ -1,4 +1,4 @@
-import { MENU as ADMIN_MENU } from '~/layouts/admin/menu'
+import { MENU as ADMIN_MENU, SUB_MENU } from '~/layouts/admin/menu'
 
 export const APP = {
   title: 'LegalGo',
@@ -23,4 +23,5 @@ export const META_TITLE_CONFIG: TMetaTitleConfig = [
   ...ADMIN_MENU.flatMap((menu) =>
     menu.items.map((item) => ({ path: item.url, title: item.title })),
   ),
+  ...SUB_MENU,
 ]