Update skills/premium-frontend-ui/SKILL.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: utkarsh232005

skills/premium-frontend-ui/SKILL.md

@@ -1,8 +1,9 @@
 ---
 name: premium-frontend-ui
 description: 'A comprehensive guide for GitHub Copilot to craft immersive, high-performance web experiences with advanced motion, typography, and architectural craftsmanship.'
-author: 'Utkarsh Patrikar'
-author_url: 'https://github.com/utkarsh232005'
+metadata:
+  author: 'Utkarsh Patrikar'
+  author_url: 'https://github.com/utkarsh232005'
 ---
 
 # Immersive Frontend UI Craftsmanship