Add name Attributes to Fluent Forms HTML attributes

fluent-forms-title-to-form-html.php

<?php

 /*
 * Add Title Attributes to Fluent Forms
 */
add_filter('fluent_form_html_attributes', function ($atts, $form) {
    $atts['name'] = esc_attr($form->title);
    return $atts;
}, 10, 2);