fix(pptEasy): 修复应用列表为空时仍显示容器的问题

当应用列表为空时，添加v-show条件判断避免显示空容器

src/components/pages/pptEasy/dialog/appDialog.vue

@@ -105,7 +105,7 @@
               <div :class="{'ac_content': !getDataLoading}">
                 <template v-for="(item, index) in dataList.filter(
                   i => i.type == item2.id
-                )">
+                )" v-show="dataList.filter(i => i.type == item2.id).length > 0">
                   <div class="ac_c_item" v-if="index < 8" :key="item.id" @click="checkApp(item)"
                     :class="{ selected: appJson.id == item.id || selectAppObj.id == item.id || selectAppList.map(i => i.id).includes(item.id) }">
                     <img class="course_item_selected" src="../../../../assets/stuImg/ai6dui.svg"