feat(xyz): try sort Checkpoint name values

    AxisOption("Prompt order", str_permutations, apply_order, format_value=format_value_join_list),

    AxisOptionTxt2Img("Sampler", str, apply_sampler, format_value=format_value, confirm=confirm_samplers, choices=lambda: [x.name for x in sd_samplers.samplers]),

    AxisOptionImg2Img("Sampler", str, apply_sampler, format_value=format_value, confirm=confirm_samplers, choices=lambda: [x.name for x in sd_samplers.samplers_for_img2img]),

    AxisOption("Checkpoint name", str, apply_checkpoint, format_value=format_value, confirm=confirm_checkpoints, cost=1.0, choices=lambda: list(sd_models.checkpoints_list)),

    AxisOption("Checkpoint name", str, apply_checkpoint, format_value=format_value, confirm=confirm_checkpoints, cost=1.0, choices=lambda: sorted(sd_models.checkpoints_list, key=str.casefold)),

    AxisOption("Sigma Churn", float, apply_field("s_churn")),

    AxisOption("Sigma min", float, apply_field("s_tmin")),

    AxisOption("Sigma max", float, apply_field("s_tmax")),