Define process.env.NODE_ENV as production in Vite configuration

Author: agund

vite.config.ts

@@ -2,6 +2,9 @@
 import { defineConfig } from 'vite';
 
 export default defineConfig({
+    define: {
+        'process.env.NODE_ENV': JSON.stringify('production'),
+    },
     build: {
         lib: {
             entry: './src/index.ts',