Standardize admin empty states

src/TaxBaik.Web/Pages/Admin/Faqs/Index.cshtml

@@ -6,16 +6,10 @@
     @await Html.PartialAsync("_AdminPageHeader", new TaxBaik.Web.Models.AdminPageHeaderModel("Support", "FAQ 관리", "질문과 답변을 관리합니다.", "/admin/faqs/create", "FAQ 작성"))
     @if (Model.Items.Count == 0)
     {
-        <div class="empty py-5 border rounded bg-body">
-            <div class="empty-img">
-                <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-help-off" width="48" height="48" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
-                    <path d="M3 3l18 18"></path>
-                    <path d="M12 17v.01"></path>
-                    <path d="M12 13a2 2 0 1 0-2-2"></path>
-                    <path d="M12 7a5 5 0 0 1 5 5"></path>
-                </svg>
+        <div class="card">
+            <div class="card-body">
+                @await Html.PartialAsync("_EmptyState", "FAQ가 없습니다.")
             </div>
-            <p class="empty-title">FAQ가 없습니다.</p>
         </div>
     }
     else