perf: 优化notify插件代码

client/web/plugins/com.msgbyte.notify/src/notify.ts

@@ -37,21 +37,18 @@ export function initNotify() {
               const registration: ServiceWorkerRegistration | null =
                 getServiceWorkerRegistration();
 
-              if (registration) {
+              const title = `${Translate.from} ${nickname}`;
-                registration.showNotification(`${Translate.from} ${nickname}`, {
+              const options: NotificationOptions = {
                 body: content,
                 icon,
                 tag: 'tailchat-message',
                 renotify: true,
-                });
+              };
+              if (registration) {
+                registration.showNotification(title, options);
               } else {
                 // fallback
-                new Notification(`${Translate.from} ${nickname}`, {
+                new Notification(title, options);
-                  body: content,
-                  icon,
-                  tag: 'tailchat-message',
-                  renotify: true,
-                });
               }
             }
           );