[fix]:[FL-195][优化文档查看页面：修复标题重复和树/内容间距问题]

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>

web/src/app/admin/docs-view/page.tsx

@@ -190,7 +190,6 @@ export default function DocsViewPage() {
     <div className="flex min-h-0 flex-1 flex-col">
       <AntCard
         className="admin-docs-view-page-card"
-        title="操作文档"
         extra={
           isMobile ? (
             <Button

web/src/app/globals.css

@@ -1510,7 +1510,7 @@ body {
   min-height: 0;
   flex: 1;
   overflow-y: auto;
-  padding: 32px;
+  padding: 24px;
   background: var(--fquiz-theme-bg-layout);
 }