uiux 개선

frontend/app/(main)/admin/commonCode/page.tsx

@@ -12,7 +12,7 @@ export default function CommonCodeManagementPage() {
 
   return (
     <div className="min-h-screen bg-gray-50">
-      <div className="container mx-auto p-6 space-y-6">
+      <div className="w-full max-w-none px-4 py-8 space-y-8">
         {/* 페이지 제목 */}
         <div className="flex items-center justify-between bg-white rounded-lg shadow-sm border p-6">
           <div>