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/notice/index.vue

@@ -2,6 +2,7 @@
 import { ref } from "vue";
 import { noticesData } from "./data";
 import NoticeList from "./noticeList.vue";
+import Bell from "@iconify-icons/ep/bell";
 
 const noticesNum = ref(0);
 const notices = ref(noticesData);
@@ -15,7 +16,7 @@ notices.value.map(v => (noticesNum.value += v.list.length));
     <span class="dropdown-badge navbar-bg-hover select-none">
       <el-badge :value="noticesNum" :max="99">
         <span class="header-notice-icon">
-          <IconifyIconOffline icon="bell" />
+          <IconifyIconOffline :icon="Bell" />
         </span>
       </el-badge>
     </span>