Table is rendering wrong when adding more than 3 cells with colspan: ``` $table ->setRows([ [ new TableCell('1', ['colspan' => 2]), new TableCell('2', ['colspan' => 2]), new TableCell('3', ['colspan' => 2]), new TableCell('4', ['colspan' => 2]) ] ]) ->render() ; ``` ``` +--+--+--+--+--+--+--+--+ | 1 | 2 | 3 | | +--+--+--+--+--+--+--+--+ ```