chill-bundles/src/Bundle/ChillCalendarBundle/Resources/public/vuejs/Calendar/index.js

import { createApp } from 'vue';
import { _createI18n } from 'ChillMainAssets/vuejs/_js/i18n'
import { appMessages } from './i18n'
import store from './store'

import App from './App.vue';

const i18n = _createI18n(appMessages);

const app = createApp({
   template: `<app></app>`,
})
.use(store)
.use(i18n)
.component('app', App)
.mount('#calendar');