create webapp stencil with side bar, routes and fake login

cmd/cli/templates/vue/App.vue.tmpl

@@ -0,0 +1,11 @@
+<script setup lang="ts">
+import { RouterLink, RouterView } from 'vue-router'
+</script>
+
+<template>
+  <RouterView />
+</template>
+
+<style scoped>
+
+</style>