Add Title to widget aside for better A11y

add_widget_title_tag.php

<?php
function db_add_widget_title_attr($params) {
    // get the widget ID
    $id  = $params[0]['id'];
    // get the widget name
    $name = isset($params[0]['widget_name']) ? $params[0]['widget_name'] : "";
    // create a new aside html string with concatenated name + id title attribute
    $title = '<aside title="' . $name . ' ' . $id . '"';
    // string replace the before widget opening tag
    $params[0]['before_widget'] = str_replace( '<aside' , $title , $params[0]['before_widget'] );
    
    return $params;
}
add_filter('dynamic_sidebar_params', 'db_add_widget_title_attr');