feat: local and preview detection

apps/website/src/middleware.ts

@@ -1,8 +1,13 @@
 import { sql } from '@vercel/postgres';
 import { NextResponse, type NextRequest } from 'next/server';
 import { PACKAGES } from './util/constants';
+import { ENV } from './util/env';
 
 async function fetchLatestVersion(packageName: string): Promise<string> {
+	if (ENV.IS_LOCAL_DEV) {
+		return 'main';
+	}
+
 	const { rows } = await sql`select version from documentation where name = ${packageName} order by version desc`;
 
 	return rows.map((row) => row.version).at(1) ?? 'main';