title: How to set vuetify drawer menu permanent when the devices is computer and no permanant when the device is mobile
body: <p>someone can help to set my drawer menu permanent depending of the user device ?
  I was thinking of using the vuetify grid system to find out if I'm in lg or md or sm, but I don't know how to do it.</p>
  
  <p>This is my drawer menu code : </p>
  
  <pre class="lang-js prettyprint-override"><code>&lt;v-navigation-drawer
              @input="updateDrawer"
              :hide-overlay="true"
              :mini-variant="true"
              :expand-on-hover="true"
              :touchless="true"
              :disable-resize-watcher="false"
              style="min-width: 100px!important;"
              v-model="d"
              //here set this: :permanent="!isMobile"
              app
              clipped
      &gt;
          ...
  
      &lt;/v-navigation-drawer&gt;
  </code></pre>
  
  <p>thanks.</p>