feat(skore): Draw the widget for the CrossValidationReports in Project.summarize()

[MarieSacksick]

Blocked by #1885, #1886.

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What would you like to say?

We want to be able to fetch CrossValidationReports inside a project.
Today, when doing Project.summarize(), we have a parallel coordinate plot widget to represent the EstimatorReports. We would like to have the same widget for CrossValidationReports.