Fix notification reply build on other platforms

src/notifications/ManagerMac.mm

@@ -39,6 +39,11 @@ NotificationsManager::postNotification(
 //unused
 void
 NotificationsManager::actionInvoked(uint, QString)
+{
+    }
+
+void
+NotificationsManager::notificationReplied(uint, QString)
 {
 }
 

src/notifications/ManagerWin.cpp

@@ -61,6 +61,7 @@ NotificationsManager::postNotification(const QString &room_id,
 }
 
 void NotificationsManager::actionInvoked(uint, QString) {}
+void NotificationsManager::notificationReplied(uint, QString) {}
 
 void NotificationsManager::notificationClosed(uint, uint) {}