fix: 菜单优化

src/layouts/components/Menu/SubMenu.vue

@@ -1,6 +1,6 @@
 <template>
-  <template v-for="subItem in menuList" :key="subItem.path">
-    <el-sub-menu v-if="subItem.children?.length" :index="subItem.path">
+  <template v-for="(subItem, index) in menuList" :key="subItem.path + index">
+    <el-sub-menu v-if="subItem.children?.length" :index="index + ''">
       <template #title>
         <svg-icon v-if="subItem.meta.icon" :name="subItem.meta.icon" class="menu-svg-icon" />
         <span class="sle" :title="subItem.meta.title">{{ subItem.meta.title }}</span>