chore(diy-image-nav): add component identity data attribute

给自定义图片导航组件添加data-component-name标识属性，用于识别组件身份

components-diy/diy-image-nav.vue

@@ -1,5 +1,5 @@
 <template>
-	<view :style="componentStyle">
+	<view :style="componentStyle" data-component-name="diy-image-nav">
 		<scroll-view :class="['image-nav', value.showStyle == 'fixed' ? 'fixed-layout' : value.showStyle]"
 			:scroll-x="value.showStyle == 'singleSlide'">
 			<view class="uni-scroll-view-content">