fix `Notification is not defined` on Android Webview or under ios16.4

Kairlec

2023-04-23 ea3f899593f47c1c6fe708495af0a091a3c73d5f

 web_src/src/layout/index.vue

@@ -24,6 +24,9 @@
}
</script>
<style>
body{
  font-family: sans-serif;
}
/*定义标题栏*/
.page-header {
  background-color: #FFFFFF;