fix(client): Solve the problem of not automatically jumping to /admin/overview...

fix(client): Solve the problem of not automatically jumping to /admin/overview when accessing the /admin page for the second time (#10264)

Co-authored-by: tamaina <tamaina@hotmail.co.jp>

packages/frontend/src/pages/admin/index.vue

@@ -23,7 +23,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, onUnmounted, provide, watch } from 'vue';
+import { onActivated, onMounted, onUnmounted, provide, watch } from 'vue';
 import { i18n } from '@/i18n';
 import MkSuperMenu from '@/components/MkSuperMenu.vue';
 import MkInfo from '@/components/MkInfo.vue';
@@ -204,6 +204,13 @@ onMounted(() => {
 	}
 });
 
+onActivated(() => {
+	narrow = el.offsetWidth < NARROW_THRESHOLD;
+	if (currentPage?.route.name == null && !narrow) {
+		router.push('/admin/overview');
+	}
+});
+
 onUnmounted(() => {
 	ro.disconnect();
 });