Extend OptionList so that an option's prompt can be replaced in some way

[davep]

In support of #2518 the OptionList widget should have a method that allows for the replacement of an option's prompt, or at the very least the swapping out of one option for another.

[davep]

Moving this back to backlog as, while it's a good idea, I think, it's far less critical now given that I've taken the multi-select widget in a slightly different direction when it comes to managing the changing of the options.

[rodrigogiraoserrao]

(This issue is reserved for the EuroPython 2023 sprint. If you are not participating in the sprint, please refrain from working on this issue. Thanks!)

The OptionList widget should grow a (couple of) method(s) to allow replacing prompts, like Dave mentions above.
Take a look at the methods that OptionList already implements to deal with prompts and notice many come in pairs.

Think about the following:

• What makes more sense? Creating a rename_prompt method or a replace_prompt? Or both?
• Should you create the method above and a _at_index variation, or just one of the two?

Good luck and have fun!

[nekeal]

I'd like to work on this one if it's still available;D 🚀

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