task1685 修复van-overlay组件内部溢出内容不可滑动

src/views/platform/bpmn/communication/communication.vue

@@ -1,5 +1,5 @@
 <template>
-    <van-overlay class="backgroundSty" z-index="2002" :show="showPop">
+    <van-overlay class="backgroundSty" z-index="2002" :show="showPop" :lock-scroll="false">
         <div style="height:5%">
             <van-sticky>
                 <van-nav-bar

src/views/platform/bpmn/complaint/complaint.vue

@@ -1,5 +1,5 @@
 <template>
-  <van-overlay class="backgroundSty" z-index="2002" :show="showPop">
+  <van-overlay class="backgroundSty" z-index="2002" :show="showPop"  :lock-scroll="false">
     <div style="height:5%">
       <van-sticky>
         <van-nav-bar