Add vuex configuration

[jamesgeorge007]

The vuex package can be added via the add:package command. It creates a store.js file with the initial boilerplate within client/src directory.

The new store.js file has to be imported and passed on to the Vue instance. Importing store file is already done which still is not that perfect. If the same command is being repeatedly executed, content repeats (import store from './store') within the main.js file which has to be handled. Also, the store being imported has to be passed in as an arguement within the Vue instance.
This is a typical main.js file:-

import store from ./store;
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router'

Vue.config.productionTip = false

new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})