Save the current sequence

        :returns: None
        :rtype: None
        :raises: None

def seq_save(self):
        """Save the current sequence

        :returns: None
        :rtype: None
        :raises: None
        """
        if not self.cur_seq:
            return

        desc = self.seq_desc_pte.toPlainText()
        self.cur_seq.description = desc
        self.cur_seq.save()