fix(bugs): 直播间默认图片

src/views/scenes/live.vue

@@ -8,10 +8,9 @@
       </template>
       <template #cover="{ record }">
         <TableImg
-          v-if="record.appListPicUrl"
           :size="150"
           :simpleShow="true"
-          :imgList="[record.appListPicUrl]"
+          :imgList="[record.appListPicUrl || '/resource/img/pic_bg@2x.png']"
         />
       </template>
       <template #houseType="{ record }">