fix: macOS do not create a new file inside app folder

The tracker list can not be created in macOS
This does not work any more in macOS 10.15 catalina
[Issue GerryFerdinandus#42]

Author: GerryFerdinandus

source/code/main.pas

@@ -752,8 +752,11 @@ procedure TFormTrackerModify.UpdateTorrent;
 
     end;//for
 
+    // Can not create a file inside the app
+    {$IFNDEF DARWIN}
     //Create tracker.txt file
     SaveTrackerFinalListToFile;
+    {$ENDIF}
 
     //Show/reload the just updated torrent files.
     AllFilesAreReadBackCorrectly := ReloadAllTorrentAndRefreshView;