Change vue-router mode to webHashHistory

This allows refreshing the page when the UI is served by the gc-binary.

Author: g3force

frontend/src/router/index.ts

@@ -1,9 +1,9 @@
-import {createRouter, createWebHistory} from 'vue-router'
+import {createRouter, createWebHashHistory} from 'vue-router'
 import StartView from '../views/StartView.vue'
 import FullStateView from "@/views/FullStateView.vue";
 
 const router = createRouter({
-  history: createWebHistory(import.meta.env.BASE_URL),
+  history: createWebHashHistory(import.meta.env.BASE_URL),
   routes: [
     {
       path: '/',