Throw an exception if FormLayout autoResponsive APIs are used in responsiveSteps mode

[rolfsmeds]

Describe your motivation

Users (and AIs) can easily use FormLayout features exclusive to autoResponsive mode without having enabled autoResponsive mode, leading to a broken layout.

Describe the solution you'd like

Throw an exception if any autoResponsive-specific APIs are used without having autoResponsive enabled:

• addFormRow
• setLabelsAside
• setColumnWidth
• setExpandColumns
• setExpandFields
• setMaxColumns

Describe alternatives you've considered

No response

Additional context

No response

[vursen]

I'm not sure how we could implement this considering that auto-responsive mode can be enabled through a feature flag, and the flag value isn't available until the component is attached. It would also be a breaking change, as it would forbid code like this:

formLayout.setLabelsAside(true);
formLayout.setAutoResponsive(true);

[rolfsmeds]

Right, good point.
Suggestions of how to alert the developer runtime in devmode that they're using API that isn't enabled?