Issue:
Related to #4477

I'm hitting a problem where if a population chart re-renders, the markers move about.

The random generator is reset to a known state when the population markers are created, but their positions are refreshed on each render, so they're deterministic across instances for the first render, or the second render, but not between the first and second renders of the same instance.

To repro:

• Run the ScottPlot Demo (in WinForms for example)
• Open the cookbook
• Scroll to the Population Box Plot page
• Drag-resize the window
• Observe the markers jumping about

ScottPlot Version: (What NuGet package are you using?)
ScottPlot.Avalonia 5.0.47