chore: add env var to use `createWebHashHistory`

.env.local.example

@@ -10,4 +10,5 @@
 # SENTRY_AUTH_TOKEN=YOUR_TOKEN
 # SENTRY_ORG=vikunja
 # SENTRY_PROJECT=frontend-oss
-# VIKUNJA_FRONTEND_BASE=/custom-subpath
+# VIKUNJA_FRONTEND_BASE=/custom-subpath
+# VITE_ROUTER_HISTORY_MODE_IS_HASH=false

src/router/index.ts

@@ -1,4 +1,4 @@
-import { createRouter, createWebHistory } from 'vue-router'
+import { createRouter, createWebHashHistory, createWebHistory } from 'vue-router'
 import type { RouteLocation } from 'vue-router'
 import {saveLastVisited} from '@/helpers/saveLastVisited'
 
@@ -81,7 +81,9 @@ const EditTeamComponent = () => import('@/views/teams/EditTeam.vue')
 const NewTeamComponent = () =>  import('@/views/teams/NewTeam.vue')
 
 const router = createRouter({
-	history: createWebHistory(import.meta.env.BASE_URL),
+	history: import.meta.env.VITE_ROUTER_HISTORY_MODE_IS_HASH === 'true'
+		? createWebHashHistory(import.meta.env.BASE_URL)
+		: createWebHistory(import.meta.env.BASE_URL),
 	scrollBehavior(to, from, savedPosition) {
 		// If the user is using their forward/backward keys to navigate, we want to restore the scroll view
 		if (savedPosition) {