feat: web端屏蔽sticky-section跳转指定id按钮

pages/component/sticky-section/sticky-section.uvue

 <template>
   <page-head title="sticky-section"></page-head>
   <list-view id="list-view" ref="list-view" show-scrollbar=false class="page" :scroll-into-view="scrollIntoView"
-  @scroll="onScroll" @scrollend="onScrollEnd" rebound="false">
+  @scroll="onScroll" @scrollend="onScrollEnd" rebound="false">
+    <!-- #ifdef APP -->
     <list-item style="padding: 10px; margin: 5px 0;align-items: center;" :type = 20>
       <button @click="gotoStickyHeader('C')" size="mini">跳转到id为C的sticky-header位置上</button>
-    </list-item>
+    </list-item>
+    <!-- #endif -->
     <sticky-section v-for="(sectionText) in data" :padding="sectionPadding" :push-pinned-header="true">
       <sticky-header :header-id="sectionText" :id="sectionText">
         <text class="sticky-header-text">{{sectionText}}</text>