fix(webpush): add user ID validation to push subscription verification

Signed-off-by: 0xsysr3ll <0xsysr3ll@pm.me>

src/utils/pushSubscriptionHelpers.ts

@@ -86,6 +86,10 @@ export const verifyAndResubscribePushSubscription = async (
   userId: number | undefined,
   currentSettings: PublicSettingsResponse
 ): Promise<boolean> => {
+  if (!userId) {
+    return false;
+  }
+
   const isValid = await verifyPushSubscription(userId, currentSettings);
 
   if (isValid) {