feat: Add TVBox configuration support and management interface

- Introduced a new configuration page for TVBox with JSON and Base64 format options.
- Updated API endpoints for TVBox configuration retrieval.
- Enhanced the sidebar navigation to link to the new configuration page.
- Improved error handling and user feedback for configuration copying.
- Added detailed usage instructions and feature descriptions in the documentation.
- Fixed issues related to deployment and static generation.

src/components/Sidebar.tsx

@@ -141,7 +141,7 @@ const Sidebar = ({ onToggle, activePath = '/' }: SidebarProps) => {
     {
       icon: Settings,
       label: 'TVBox配置',
-      href: '/tvbox',
+      href: '/config',
     },
   ];