feat(structured-list): Add React component support for the condensed structured list styles

[zJag]

Summary

The carbon-components repo has styles for a condensed structured list using the class {prefix}--structured-list--condensed. The React component StructuredListWrapper should have a prop that toggles this class, similar to how there are props to change the sizing of Button and DataTable.

The styles can currently be added by manually including the class under the className prop.

Justification

Since carbon-components have the styles, it should be supported in carbon-components-react.

Desired UX and success metrics

A user can set a prop to toggle the class on the StructuredListWrapper.

"Must have" functionality

An easy way to add the condensed class to the React component.

Specific timeline issues / requests

As there is a workaround to add this feature, there is no specific timeline.

Available extra resources

I've added this feature in my forked carbon repo already. I will be able to submit a PR to add this feature.

[asudoh]

Hi 👋 seems that adding that support makes sense, unless our designer considers that mode is a legacy one. CC @carbon-design-system/design