checkbox: Improve accessibility of check boxes for Orca users
Set the label actor, so Orca presents the label text when the check box has focus. Also change the role to ATK_ROLE_CHECKBOX.
Fixes #2517 (closed)
Set the label actor, so Orca presents the label text when the check box has focus. Also change the role to ATK_ROLE_CHECKBOX.
Fixes #2517 (closed)