配置 mdx 与 turbopack 继承；修复退出登录后循环跳转的问题；button 统一复用可导出样式并微调样式

next.config.ts

@@ -4,11 +4,13 @@ import remarkGfm from 'remark-gfm'
 
 const nextConfig: NextConfig = {
   output: "standalone",
-  pageExtensions: ['js', 'jsx', 'md', 'mdx', 'ts', 'tsx'],
+  pageExtensions: ['js', 'jsx', 'mdx', 'ts', 'tsx'],
+  experimental: {
+    mdxRs: true,
+  }
 }
 
 const withMdx = createMDX({
-  extension: /\.(md|mdx)$/,
   options: {
     remarkPlugins: [remarkGfm],
     rehypePlugins: [],