config: update Vite server host to listen on all network interfaces.

Author: HackyCoder0951

frontend/vite.config.ts

@@ -4,7 +4,7 @@ import react from '@vitejs/plugin-react'
 // https://vite.dev/config/
 export default defineConfig({
   server: {
-    host: 'localhost',
+    host: '*',
     port: 5173,
     strictPort: true,
     allowedHosts: ['authdb-1-1vsu.onrender.com', 'authdb-832j.onrender.com', 'localhost', '0.0.0.0'],