fix: missing meta

src/pages/tools/string/rot13/meta.ts

@@ -6,8 +6,9 @@ export const tool = defineTool('string', {
   name: 'Rot13',
   path: 'rot13',
   icon: 'hugeicons:encrypt',
-  description: '',
-  shortDescription: '',
+  description:
+    'A simple tool to encode or decode text using the ROT13 cipher, which replaces each letter with the letter 13 positions after it in the alphabet.',
+  shortDescription: 'Encode or decode text using ROT13 cipher.',
   keywords: ['rot13'],
   component: lazy(() => import('./index'))
 });