message: add link to global halloween stats
diff: <template>
  - <div class="sheet" v-if="caughtAnything">
  + <div class="sheet -container" v-if="caughtAnything">
  <h4 class="-title">
  Halloween Monster Hunt
  </h4>
  />
  </div>
  </div>
  + <div>
  + <router-link :to="{ name: 'landing.halloween', hash: '#monster-stats' }">
  + <app-button icon="world" class="pull-right">
  + Global Stats
  + </app-button>
  + </router-link>
  + </div>
  </div>
  </template>
  @require '~styles/variables'
  @require '~styles-lib/mixins'
  +.-container
  + padding-bottom: 56px
  +
  .-title
  text-align: center
  margin: 0
  