progress static method
Display progress indicator
Implementation
static void progress(String message, {int current = 0, int total = 100}) {
final percentage = total > 0 ? ((current / total) * 100).round() : 0;
final bar = '█' * (percentage ~/ 5);
final empty = '░' * (20 - (percentage ~/ 5));
stdout.write('\r [$bar$empty] $percentage% - $message');
}