SpecialCharactersNavigationView is an instance of the FormHeaderView and unnecessary SpecialCharactersNavigationView#labelView was removed.SpecialCharactersNavigationView an instance of the new FormHeaderView UI. See ckeditor/ckeditor5#6109. (342a536)FormHeaderView component. See ckeditor/ckeditor5#6586. (d20907a)The initial release.