**As** an impaired user
**I want to** have an accessible CollapsibleSectionComponent Begin of the insertion

End of the insertion Begin of the deletion


End of the deletion **Acceptance criteria**

* Begin of the insertionCollapsing/Expanding is possible via keyboard

End of the insertion Begin of the deletion <br>


**Technical notes**

End of the deletion * Begin of the insertion..End of the insertion Begin of the deletion <br>End of the deletion