errorBuilder property

Custom widget builder for displaying stream errors.

Note: This parameter is currently not fully implemented. Stream errors are caught but not displayed. To handle errors, use stream error handling:

final errorHandledStream = originalStream.handleError((error) {
  print('Error: $error');
  // Return empty or error message
});

StreamMarkdown(stream: errorHandledStream)

Future implementation may use this builder to display errors inline:

errorBuilder: (error) => Container(
  padding: EdgeInsets.all(16),
  color: Colors.red[100],
  child: Text('Error: $error'),
)