improve view management: - we can pass a negative view index, in this case we count from the end of the list of view - before creating/changing the view representation, we remove the previous one and reinitialize the node visibility - each time we save a view, it creates a new one at the end of the list - "restore" view loads the last view of the list

<?php

    require_once(realpath(dirname(__FILE__) . "/../resources/config.php"));

    require_once(LIBRARY_PATH . "/templateFunctions.php");

    $variables = ['config' => $config, 'renkanId' => $_GET['renkanId']];
    $css = [
        'static/lib/renkan/css/renkan.css'
    ];

    renderLayoutWithContentFile("renkan_read.php", $variables, $css);