fix: 修复示例页面style语法错误

pages/template/custom-long-list/custom-long-list.uvue

 <template>
   <custom-list-view style="flex: 1;" :list="list" @scrolltoupper="scrolltoupper" @scroll="scroll">
     <template v-slot:default="{items}">
-      <custom-list-item v-for="item in (items as Item[])" :item="item" :key="item.id" style="padding: 5px; 10px">
+      <custom-list-item v-for="item in (items as Item[])" :item="item" :key="item.id" style="padding: 5px 10px;">
         <view style="background-color: aqua;">{{item.title}}</view>
         <view>{{item.content}}</view>
       </custom-list-item>