Responsive rules in highcharts-stock ignore Stock-only options (e.g. rangeSelector) because Responsive comes from highcharts_core

[javipzv]

Summary

When using the Python wrapper for Highcharts Stock, I cannot put rangeSelector inside responsive.rules[].chartOptions. The Responsive class in highcharts_stock re-exports the one from highcharts_core, so chartOptions is typed/validated like Core (HighchartsOptions). As a result, Stock-only options (like rangeSelector) are dropped/ignored during serialization, and the browser never receives them.

Steps to Reproduce

• Create Stock options with a working base range_selector.

• Add a responsive rule that tries to change rangeSelector for small screens.

• Serialize and render.