feat: 插件/主题管理卡片改用 Filament 原生组件+中文页面标题；注入点分三组管理（页面/侧边栏/文章）；前台 sablog 主题全面语义化（header/nav/main/aside/section/footer）

resources/views/filament/pages/themes.blade.php

@@ -2,9 +2,10 @@
     <x-filament::section heading="主题列表">
         <div class="grid gap-5 sm:grid-cols-2 lg:grid-cols-3">
             @forelse($this->themes as $theme)
-                <div class="flex flex-col overflow-hidden rounded-xl border border-gray-200 bg-white shadow-sm dark:border-white/10 dark:bg-white/5">
+                <x-filament::section :compact="true" class="!p-0">
+                    <div class="flex flex-col">
                     {{-- 主题预览图 --}}
-                    <div class="relative aspect-[4/3] overflow-hidden bg-gray-100 dark:bg-white/5">
+                    <div class="relative aspect-[4/3] overflow-hidden rounded-t-lg bg-gray-100 dark:bg-white/5">
                         @if($theme['screenshot'])
                             <img src="{{ theme('asset', $theme['screenshot'], $theme['name']) }}"
                                  alt="{{ $theme['title'] }} 预览"
@@ -44,7 +45,8 @@
                             @endif
                         </div>
                     </div>
-                </div>
+                    </div>
+                </x-filament::section>
             @empty
                 <p class="text-sm text-gray-500">暂无主题</p>
             @endforelse