update assetPrefix (#442)

Author: lazarusA

next.config.ts

@@ -3,8 +3,8 @@ import path from 'path';
 
 const isProd = process.env.NODE_ENV === 'production';
 const basePath = isProd ? (process.env.BASE_PATH || '') : '';
-const targetFolder = process.env.TARGET_FOLDER || '';
-const assetPrefix = isProd && targetFolder !== '' ? './' : '';
+// const targetFolder = process.env.TARGET_FOLDER || '';
+const assetPrefix = isProd ? (basePath ? `${basePath.replace(/\/$/, '')}/` : './') : '';
 
 /** @type {import('next').NextConfig} */
 const nextConfig = {