timeAgo static method
Implementation
static String timeAgo(DateTime date) {
final diff = DateTime.now().difference(date);
if (diff.inSeconds < 60) return '${diff.inSeconds}s ago';
if (diff.inMinutes < 60) return '${diff.inMinutes}m ago';
if (diff.inHours < 24) return '${diff.inHours}h ago';
if (diff.inDays < 7) return '${diff.inDays}d ago';
return formatDate(date);
}