调整数据库结构，实现消息模板管理

Atomx.Admin/Atomx.Admin.Client/Pages/Settings/Settings.razor

@@ -1,7 +1,22 @@
 @page "/settings"
+@page "/{locale}/settings"
 @attribute [Authorize]
 @inject ILogger<Settings> Logger
 
-@code {
+<PageContainer Title="系统设置">
+    <Breadcrumb>
+        <Breadcrumb>
+            <BreadcrumbItem Href="/">管理后台</BreadcrumbItem>
+            <BreadcrumbItem Href="/admin/list">系统功能</BreadcrumbItem>
+            <BreadcrumbItem>系统设置</BreadcrumbItem>
+        </Breadcrumb>
+    </Breadcrumb>
+    <ChildContent>
+        <h3>Tools</h3>
+    </ChildContent>
+</PageContainer>
 
-}
+@code {
+    [Parameter]
+    public string Locale { get; set; } = string.Empty;
+}