add i18n

vite.config.js

@@ -2,9 +2,13 @@ import { fileURLToPath, URL } from 'node:url'
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import VueRouter from 'vue-router/vite'
+import VueI18n from '@intlify/unplugin-vue-i18n/vite'
 
 export default defineConfig(({ mode }) => ({
   plugins: [
+    VueI18n({
+      include: fileURLToPath(new URL('./vue/locales/**', import.meta.url)),
+    }),
     VueRouter({
       routesFolder: 'vue/routes',
       importMode: 'sync',