优化

src/pages/customized/preview.vue

 <template>
 	<view class="pre-container">
 		<view class="pre-image" v-for="(item, i) in pageData" :key="i">
-			<image v-if="item.type == 'image/jpeg'" :src="baseURL + downUrl + item.pageComponent" mode="widthFix" style="width: 100%;"></image>
+			<image v-if="item.type == 'image/jpeg' || item.type == 'image/png'" :src="baseURL + downUrl + item.pageComponent" mode="widthFix" style="width: 100%;"></image>
 			<video v-else :src="baseURL + downUrl + item.pageComponent" object-fit="fill" class="pre-video" />
 		</view>
 		<view style="width: 100%; height: 40rpx;"></view>