a11y: Map GTK_ACCESSIBLE_STATE_INVALID to ATSPI_STATE_INVALID_ENTRY
Previously, it was mapped to ATSPI_STATE_INVALID. However, that state is used for some internal errors, and not user errors, so use the correct one for that purpose.
Previously, it was mapped to ATSPI_STATE_INVALID. However, that state is used for some internal errors, and not user errors, so use the correct one for that purpose.