Force WPForms Modern Dropdown field to open downwards

wpf-dropdown-position.php

<?php
// Filter: https://wpforms.com/developers/wpforms_field_select_choicesjs_config/
//Dropdown Style must be set to Modern, see: https://a.supportally.com/i/xJag2i 

function wpf_dev_modern_dropdown_position_bottom( $config, $forms ) {
     
    // Change 18591 to an ID of your actual form or remove this condition to apply to all forms.
    // See: https://wpforms.com/developers/how-to-locate-form-id-and-field-id/#form-id
    if ( ! array_key_exists( 18591, $forms ) ) {
        return $config;
    }
     
    //Configure Dropdown field to always open downwards
    //Default is 'auto'. Can set to 'top' (https://github.com/Choices-js/Choices#position)
	$config['position'] = 'bottom';
     
    return $config;
}
add_filter( 'wpforms_field_select_choicesjs_config', 'wpf_dev_modern_dropdown_position_bottom', 10, 2 );