A width parameter to MofNCompleteColumn would be useful

[vsajip]

In a case where e.g. multiple downloads are taking place where the files are of vastly different sizes, it would be useful for the width used in MofNCompleteColumn could be overridden with the largest file size:

class MofNCompleteColumn(ProgressColumn):
    """Renders completed count/total, e.g. '  10/1000'.

    Best for bounded tasks with int quantities.

    Space pads the completed count so that progress length does not change as task progresses
    past powers of 10.

    Args:
        separator (str, optional): Text to separate completed and total values. Defaults to "/".
        width (int, optional): A minimum width to apply for the step formatting. Defaults to 0.
                               Useful when multiple tasks with very different totals are present.

    """

    def __init__(self, separator: str = "/", table_column: Optional[Column] = None, width: Optional[int] = 0):
        self.separator = separator
        self.width = width
        super().__init__(table_column=table_column)

    def render(self, task: "Task") -> Text:
        """Show completed/total."""
        completed = int(task.completed)
        total = int(task.total) if task.total is not None else "?"
        total_width = max(self.width, len(str(total)))
        return Text(
            f"{completed:{total_width}d}{self.separator}{total:{total_width}d}",
            style="progress.download",
        )