Refactored counting idle time.

- psIdleTime() was replaced with Platform::LastUserInputTime().
 - _lastTimeVideoPlayedAt was moved to Application as _lastNonIdleTime.
 - Call of updateNonIdle() was added while voice is recording.
 - Fixed #5695.
 - Thanks Preston. =)

Telegram/SourceFiles/platform/linux/specific_linux.cpp

@@ -207,10 +207,6 @@ bool psIdleSupported() {
 	return false;
 }
 
-crl::time psIdleTime() {
-	return crl::now() - _lastUserAction;
-}
-
 void psActivateProcess(uint64 pid) {
 //	objc_activateProgram();
 }
@@ -449,6 +445,10 @@ bool OpenSystemSettings(SystemSettingsType type) {
 	return true;
 }
 
+crl::time LastUserInputTime() {
+	return _lastUserAction;
+}
+
 namespace ThirdParty {
 
 void start() {