Based on the designs, if a member's role is changed (not saved, but just different to their current role) in the dropdown menu, we need to add a confirmation exit modal to warn them that they will
lose their changes by closing the role change modal.
https://linear.app/comm/issue/ENG-4039/confirm-a-user-wants-to-exit-if-changes-are-made-in-the-modal
Depends on D8138