Refactored checking of last input while notifications are displayed.

- Removed condition for Windows platform only.
 - Added smooth hiding of notifications in case video is watched or voice message is recorded.
 - psUserActionDone() was completely replaced with Core::App().updateNonIdle().

Telegram/SourceFiles/window/notifications_manager_default.h

@@ -216,9 +216,7 @@ private:
 	Animation a_actionsOpacity;
 	QPixmap _buttonsCache;
 
-#ifdef Q_OS_WIN
 	crl::time _started;
-#endif // Q_OS_WIN
 
 	History *_history;
 	PeerData *_peer;