Fix 1710

[beto-rodriguez]

fixes #1710

Enhancements to Invalidate Method:

• CoreBoxSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreBoxSeries.cs)
• CoreColumnSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreColumnSeries.cs)
• CoreFinancialSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreFinancialSeries.cs)
• CoreHeatSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreHeatSeries.cs)
• CoreLineSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreLineSeries.cs)
• CorePieSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CorePieSeries.cs)
• CoreRowSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreRowSeries.cs)
• CoreScatterSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreScatterSeries.cs)
• CoreStepLineSeries: Added logic to handle the removal and cleanup of labels if they are present. (src/LiveChartsCore/CoreStepLineSeries.cs)

New Unit Test Class:

• VisibilityTests: Added a new unit test class to test the visibility changes of various series types, ensuring that labels and visuals are properly handled when visibility changes. (tests/LiveChartsCore.UnitTesting/SeriesTests/VisibilityTests.cs)