quasar nested linkstoolbar

gistfile1.txt

<q-drawer-link icon="content_paste" to="/app" exact>
          Dashboard
        </q-drawer-link>
        <q-drawer-link icon="assignment" to="/app/registrations">
          Registrations
        </q-drawer-link>
        <q-collapsible menu icon="event" label="Event" opened>
          <q-drawer-link to="/app/event">
            Data
          </q-drawer-link>
          <q-collapsible menu label="Competitions" opened>
            <div style="overflow: auto; max-height: 400px">
              <q-drawer-link
                v-for="competition in app.state.competitions"
                :key="competition"
                :to="`/app/competitions/${competition.id}`"
                exact
              >
                {{ competition.name }}
              </q-drawer-link>
            </div>
          </q-collapsible>
          <q-drawer-link to="/app/startnumbers">
            Start Numbers
          </q-drawer-link>
        </q-collapsible>