Souke/backend/web/sass/point_sale/_index.scss

.point-sale-index {
    table {
        .td-default {
            text-align: center ;
        }
        .column-payment-method {
            ul {
                list-style-type: none;
                padding: 0px;
                padding-left: 5px;
                margin: 0px;
            }
        }
    }    
}