refactor: migrate documentation to support multi-language structure with i18n integration

documentation/next.config.mjs

@@ -1,10 +1,10 @@
-import { createMDX } from 'fumadocs-mdx/next';
+import { createMDX } from "fumadocs-mdx/next";
 
 const withMDX = createMDX();
 
 /** @type {import('next').NextConfig} */
 const config = {
-  reactStrictMode: true,
+	reactStrictMode: true,
 };
 
 export default withMDX(config);