refactor(SubscribeListView): 移除不必要的 VPullToRefresh 组件，简化订阅列表渲染逻辑

src/views/subscribe/SubscribeListView.vue

@@ -1,6 +1,5 @@
 <script lang="ts" setup>
 import draggable from 'vuedraggable'
-import { VPullToRefresh } from 'vuetify/labs/VPullToRefresh'
 import api from '@/api'
 import type { Subscribe } from '@/api/types'
 import NoDataFound from '@/components/NoDataFound.vue'
@@ -138,7 +137,6 @@ onActivated(async () => {
 
 <template>
   <LoadingBanner v-if="!isRefreshed" class="mt-12" />
-  <VPullToRefresh v-model="loading" @load="onRefresh">
   <draggable
     v-if="displayList.length > 0"
     v-model="displayList"
@@ -158,7 +156,6 @@ onActivated(async () => {
     error-title="没有订阅"
     error-description="请通过搜索添加电影、电视剧订阅。"
   />
-  </VPullToRefresh>
   <!-- 底部操作按钮 -->
   <div>
     <VFab