whmcsKerioEmail/app/UI/Client/Templates/assets/js/setting/index.js

/**
 *
 *
 * Modal position fix.
 * add custom class if modal height is bigger than window.
 */
mgEventHandler.on('ModalLoaded', null,function(){

    $('.modal-alert-top').each(function(index){
        var self = $(this);
        self.addClass('lu-alert--danger');
    });
});