perf: 将本地图标全部按需引入，首屏加载减少 61 个图标资源，首屏加载再次变快 (#389)

* perf: 优化图标，将本地图标按需引入，首屏加载减少 `61` 个图标资源，首屏加载再次变快

src/layout/components/sidebar/leftCollapse.vue

@@ -1,5 +1,7 @@
 <script setup lang="ts">
 import { useDark } from "@pureadmin/utils";
+import MenuFold from "@iconify-icons/ri/menu-fold-fill";
+import MenuUnfold from "@iconify-icons/ri/menu-unfold-fill";
 
 interface Props {
   isActive: boolean;
@@ -27,7 +29,7 @@ const toggleClick = () => {
       :content="props.isActive ? '点击折叠' : '点击展开'"
     >
       <IconifyIconOffline
-        :icon="props.isActive ? 'menu-fold' : 'menu-unfold'"
+        :icon="props.isActive ? MenuFold : MenuUnfold"
         class="cursor-pointer inline-block align-middle text-primary hover:text-primary dark:hover:!text-white w-[16px] h-[16px] ml-4 mb-1"
         @click="toggleClick"
       />