✨ [Feature]: Steps步骤条支持副标题

[hashiqi12138]

What problem does this feature solve

What does the proposed API look like

支持通过 data，slots 配置副标题

What is your project name

无

[petercat-assistant]

这个功能请求是关于在 Steps 步骤条中支持副标题的。用户希望通过 data 和 slots 来配置副标题，以增强步骤条的功能。

此请求已经被记录在案，并将被考虑在未来的更新中。感谢您的建议！

如果您有其他问题或需要进一步的帮助，请随时告诉我。

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For further assistance, please describe your question in the comments and @petercat-assistant to start a conversation with me.

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Title: ✨ [Feature]: Steps step supports subtitles