Tabler polish for client and blog editors

src/TaxBaik.Web/Pages/Admin/Clients/Create.cshtml

@@ -4,10 +4,10 @@
     ViewData["Title"] = "고객 등록";
 }
 
-<section class="container admin-page-shell">
+<section class="admin-page-shell">
     <partial name="_AdminPageHeader" model='("고객 관리", "고객 등록", "FluentValidation과 Tabler 표준 폼으로 신규 고객을 등록합니다.", null, null)' />
 
-    <form method="post" class="card shadow-sm border-0">
+    <form method="post" class="card">
         <div class="card-body">
             <partial name="_ValidationSummary" />
             <div class="row g-3">
@@ -50,7 +50,7 @@
                 </div>
             </div>
         </div>
-        <div class="card-footer bg-white d-flex justify-content-end gap-2">
+        <div class="card-footer d-flex justify-content-end gap-2">
             <a class="btn btn-outline-secondary" href="/admin/clients">취소</a>
             <button class="btn btn-primary" type="submit">저장</button>
         </div>