If no Notifications, we essentially don't have permission (should fix on iOS)

src/controllers/organisms/Notifier.js

@@ -44,6 +44,7 @@ module.exports = {
     },
 
     havePermission: function() {
+        if (!this.supportsDesktopNotifications()) return false;
         return global.Notification.permission == 'granted';
     },