Código da App.vue para copiar/colar

App.vue

<template>
  <!-- Don't drop "q-app" class -->
  <div id="q-app">

    <q-layout ref="layout" view="lHh Lpr fff" :left-class="{'bg-grey-2': true}">
      <q-toolbar slot="header" class="glossy">
        <q-btn flat @click="$refs.layout.toggleLeft()">
          <q-icon name="menu" />
        </q-btn>

        <q-toolbar-title>
          Quasar App
          <div slot="subtitle">Running on Quasar v:{{$q.version}}</div>
        </q-toolbar-title>
      </q-toolbar>

      <div slot="left">
        <!--
          MENU
        -->
        <q-list no-border link inset-delimiter>
          <q-item to="/" exact>
            <q-item-side icon="done" />
            <q-item-main label="Item 1"  />
          </q-item>
          <q-item>
            <q-item-side icon="done" />
            <q-item-main label="Item 2" />
          </q-item>
          <q-item to="/ContactForm">
            <q-item-side icon="contacts" />
            <q-item-main label="Contato"/>
          </q-item>
        </q-list>
      </div>
      <router-view />
    </q-layout>
  </div>
</template>

<script>
  /*
   * Root component
   */
  import {
    QLayout,
    QToolbar,
    QToolbarTitle,
    QBtn,
    QIcon,
    QList,
    QListHeader,
    QItem,
    QItemSide,
    QItemMain
  } from 'quasar'
  export default {
    components: {
      QLayout,
      QToolbar,
      QToolbarTitle,
      QBtn,
      QIcon,
      QList,
      QListHeader,
      QItem,
      QItemSide,
      QItemMain
    }
  }
</script>

<style></style>