fixed production backend url

vite.config.ts

@@ -1,7 +1,11 @@
-import { defineConfig } from 'vite'
+import { defineConfig, loadEnv } from 'vite'
 import vue from '@vitejs/plugin-vue'
 
 // https://vitejs.dev/config/
-export default defineConfig({
-  plugins: [vue()],
-})
+export default defineConfig(({mode}) => {
+	Object.assign(process.env, loadEnv(mode, process.cwd()));
+
+	return {
+	  plugins: [vue()],
+	}
+})