close

pub fn close(self: *FloatingWindowWidget) void {
    if (self.init_options.open_flag) |of| {
        of.* = false;
    } else {
        dvui.log.warn("{s}:{d} FloatingWindowWidget.close() was called but it has no open_flag", .{ self.data().src.file, self.data().src.line });
    }
    dvui.refresh(null, @src(), self.data().id);
}