[FEATURE]: Add dynamic sorting of the tooltip legend ordering for hovermode='x unified' mode

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Description

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Please add dynamic sorting of the tooltip legend ordering for hovermode='x unified' mode, so that when the user move the mouse over the chart, the legend showing up in the tooltip block reflects the ascending order of the legend value for that specific x value.

Why should this feature be added?

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This will drastically improve the intuitiveness of the tooltip block information, making direct comparison between different trace at a certain x value much more easier.

Mocks/Designs

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Notes

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Es werden keine Dateien, Tests oder Einstiegspunkte genannt. Beginne damit, die Implementierung von hovermode='x unified' und die Reihenfolge der Tooltip-Legende zu finden, und ermittle dann, wie Werte an jeder x-Position dynamisch sortiert werden können. Als erledigt gilt die Aufgabe, wenn der Tooltip für den beim Darüberfahren ausgewählten x-Wert die aufsteigende Reihenfolge der Legendenwerte widerspiegelt, ohne andere Hover-Modi zu ändern.