addChoice

pub fn addChoice(self: *SuggestionWidget) *MenuItemWidget {
    self.drop_mi = @as(MenuItemWidget, undefined); // Must be a non-null value for the `.?` bellow
    self.drop_mi.?.init(@src(), .{ .highlight_only = true }, .{
        .role = .list_item,
        .label = .{ .label_widget = .next },
        .id_extra = self.drop_mi_index,
        .expand = .horizontal,
        .padding = .{},
    });
    self.drop_mi.?.processEvents();
    if (self.drop_mi.?.data().id == dvui.focusedWidgetId()) {
        self.selected_index = self.drop_mi_index;
    }
    if (self.selected_index == self.drop_mi_index) {
        if (self.activate_selected) {
            self.drop_mi.?.activated = true;
            self.drop_mi.?.show_active = true;
        } else {
            self.drop_mi.?.highlight = true;
        }
    }
    self.drop_mi.?.drawBackground();

    self.drop_mi_index += 1;

    return &self.drop_mi.?;
}