feat: 移除冗余

src/views/Billboard/Billboard.vue

@@ -63,7 +63,7 @@
 </template>
 
 <script setup>
-import { computed, ref, watch, nextTick, onMounted } from 'vue'
+import { computed, ref, watch, nextTick } from 'vue'
 import { storeToRefs } from 'pinia'
 import { useStore } from '@/store/root'
 import { useRouter } from 'vue-router'