mwc-test/src/main.js

## Project setup ``` yarn install ```

import Vue from 'vue'
import App from './App.vue'
import store from './store'

import './assets/styles/global.scss'
import VueCustomElement from 'vue-custom-element'

Vue.use(VueCustomElement)
Vue.config.productionTip = false

App.store = store
Vue.customElement('login-app', App)