Update server.js

server.js

@@ -2,7 +2,7 @@
 const express = require('express');
 const proxy = require('express-http-proxy');
 const app = express();
-const targetUrl = 'https://api.gpt4-all.xyz/v1';
+const targetUrl = 'https://api.naga.ac/v1';
 const openaiKey = process.env.OPENAI_KEY
 const port = 7860;
 const baseUrl = getExternalUrl(process.env.SPACE_ID);