fix 主办方管理两个列表信息为空时显示优化

 <!--
  * @Date: 2022-09-19 14:11:06
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2022-10-25 13:36:09
+ * @LastEditTime: 2022-10-31 13:13:21
  * @FilePath: /swx/src/pages/projectManage/index.vue
  * @Description: 主办方管理页面
 -->
@@ -12,7 +12,7 @@
         <text class="bg-gradient" style="font-size: 1rem;">我创建的主办方</text>
       </view>
     </view>
-    <view class="create-box">
+    <view v-if="create_list.length" class="create-box">
       <view class="create-item" v-for="(item, index) in create_list" :key="index">
         <van-row>
           <van-col span="15">
@@ -36,7 +36,7 @@
         <text class="bg-gradient" style="font-size: 1rem;">我加入的主办方</text>
       </view>
     </view>
-    <view class="join-box">
+    <view v-if="join_list.length" class="join-box">
       <view class="join-item" v-for="(item, index) in join_list" :key="index">
         <van-row>
           <van-col span="24">