Added missing imports in main.ts + another example of using the store without havint `this.$store` available.
Added missing imports in main.ts + another example of using the store without havint `this.$store` available.

twcapps/vue-typescript-boilerplate,twcapps/vue-typescript-boilerplate,twcapps/vue-typescript-boilerplate,twcapps/vue-typescript-boilerplate