refactor: add copyright info

Author: fecommunity

client/src/components/Seo/index.tsx

@@ -12,6 +12,7 @@ export const Seo = () => {
         {setting.systemTitle}{setting.systemSubTitle ? ` - ${setting.systemSubTitle}` : ''}
       </title>
       <meta name="viewport" content="width=device-width,initial-scale=1.0,viewport-fit=cover,maximum-scale=1" />
+      <meta name="copyright" content="Copyright (c) 2024 ReactPress(https://github.com/fecommunity/reactpress). All rights reserved." />
       <meta name="keyword" content={setting.seoKeyword} />
       <meta name="description" content={setting.seoDesc} />
       <link rel="shortcut icon" href={setting.systemFavicon} />