message: change shims
diff: import { ComponentCustomProperties } from 'vue'
  import { Store } from 'vuex'
  -
  -import { CartState } from './store/Cart'
  +import { State } from './store'
  declare module '@vue/runtime-core' {
  // provide typings for `this.$store`
  interface ComponentCustomProperties {
  - $store: Store<CartState>
  + $store: Store<State>
  }
  }
  