fix(collapse): 方向图标根据展开状态变化

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@layui/layui-vue",
-  "version": "0.0.17",
+  "version": "0.0.18",
   "description": "a component library for Vue 3 base on layui-vue",
   "main": "lib/layui-vue.umd.js",
   "module": "lib/layui-vue.es.js",

src/module/breadcrumb/index.vue

@@ -5,7 +5,10 @@
 </template>
 
 <script setup name="LayBreadcrumb" lang="ts">
-import { defineProps, provide, withDefaults } from 'vue'
+import { defineProps, provide, withDefaults, useSlots } from 'vue'
+
+const slot = useSlots()
+const slots = slot.default && slot.default()
 
 const props = withDefaults(
   defineProps<{

src/module/collapseItem/index.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="layui-colla-item">
     <h2 class="layui-colla-title" @click="showHandle">
-      {{ title }}<i class="layui-icon layui-colla-icon"></i>
+      {{ title }}<i class="layui-icon layui-colla-icon">{{ isShow ? "":"" }}</i>
     </h2>
     <div class="layui-colla-content" :class="isShow ? 'layui-show':''">
       <p>