refactor: 代码重构优化(VueUse使用)

Former-commit-id: f33b8d352dd9e9b2a706c94cdd7afa150ac12931

src/layout/components/Sidebar/Link.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import { computed } from 'vue';
-import { isExternal } from '@/utils/validate';
+import { isExternal } from '@/utils/index';
 import { useRouter } from 'vue-router';
 
 import { useAppStore } from '@/store/modules/app';

src/layout/components/Sidebar/SidebarItem.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import path from 'path-browserify';
-import { isExternal } from '@/utils/validate';
+import { isExternal } from '@/utils/index';
 import AppLink from './Link.vue';
 
 import { translateRouteTitleI18n } from '@/utils/i18n';