remove separate storage reference for account check

src/router/index.ts

@@ -1,5 +1,5 @@
 import { createRouter, createWebHistory, RouteRecordRaw } from "vue-router";
-import { useAppStore } from "../store/app";
+import { db } from "@/db";
 
 const routes: Array<RouteRecordRaw> = [
   {
@@ -7,10 +7,10 @@ const routes: Array<RouteRecordRaw> = [
     name: "home",
     component: () =>
       import(/* webpackChunkName: "start" */ "../views/DiscoverView.vue"),
-    beforeEnter: (to, from, next) => {
-      const appStore = useAppStore();
-      const isAuthenticated = appStore.condition === "registered";
-      if (isAuthenticated) {
+    beforeEnter: async (to, from, next) => {
+      await db.open();
+      const num_accounts = await db.accounts.count();
+      if (num_accounts > 0) {
         next();
       } else {
         next({ name: "start" });