fix logout behavior when there is no push subscription 2

src/client/account.ts

@@ -33,6 +33,7 @@ export async function signout() {
 
 	//#region Remove push notification registration
 	try {
+		if (navigator.serviceWorker.controller) {
 			const registration = await navigator.serviceWorker.ready;
 			const push = await registration.pushManager.getSubscription();
 			if (push) {
@@ -44,6 +45,7 @@ export async function signout() {
 					}),
 				});
 			}
+		}
 	} catch (e) {}
 	//#endregion