style(admin): clear sync errors tool add spacing wrapper

resources/views/admin/platform_orders/index.blade.php

@@ -832,7 +832,9 @@
         <input type="hidden" name="bmpa_error_keyword" value="{{ $filters['bmpa_error_keyword'] ?? '' }}">
         <input type="hidden" name="reconcile_mismatch" value="{{ $filters['reconcile_mismatch'] ?? '' }}">
         <input type="hidden" name="refund_inconsistent" value="{{ $filters['refund_inconsistent'] ?? '' }}">
-        <button class="btn btn-danger btn-sm" type="submit">清除同步失败标记（当前筛选范围）</button>
+        <div class="mt-6">
+            <button class="btn btn-danger btn-sm" type="submit">清除同步失败标记（当前筛选范围）</button>
+        </div>
     </form>
 
     <form method="post" action="/admin/platform-orders/clear-sync-errors" onsubmit="return confirm('确认清除全部订单的“同步失败”标记？该操作不可逆（仅清理 meta 标记），请谨慎。');" class="mb-10">