ExpandableSection / ExpandableSectionToggle - allow opting out of default icon

[dgdavid]

Is this a new component or an extension of an existing one?

Kind of extension of an existing one.

Describe the feature

In some use cases, the default icon (and its position) is not suitable. It would be helpful to have a simple way to omit it entirely. Consumers can provide their own custom icon directly as part of the toggle content This would offer greater flexibility in customizing the toggle's appearance and behavior to better match specific design or UX requirements.

Are there visuals for this feature? If applicable, please include examples for each state and for varying widths

No

Any other information?

N/A