added pinia to all app entrypoints

vue/src/apps/ShoppingListView/main.js

@@ -1,6 +1,7 @@
 import i18n from "@/i18n"
 import Vue from "vue"
 import App from "./ShoppingListView"
+import {createPinia, PiniaVuePlugin} from "pinia";
 
 Vue.config.productionTip = false
 
@@ -11,7 +12,11 @@ if (process.env.NODE_ENV === "development") {
 }
 export default __webpack_public_path__ = publicPath // eslint-disable-line
 
+Vue.use(PiniaVuePlugin)
+const pinia = createPinia()
+
 new Vue({
+    pinia,
     i18n,
     render: (h) => h(App),
 }).$mount("#app")