Adjust copyrights years

<?php
/**
 * SeekQuarry/Yioop --
 * Open Source Pure PHP Search Engine, Crawler, and Indexer
 *
 * Copyright (C) 2009 - 2023  Chris Pollett chris@pollett.org
 *
 * LICENSE:
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * END LICENSE
 *
 * @author Chris Pollett chris@pollett.org
 * @license https://www.gnu.org/licenses/ GPL3
 * @link https://www.seekquarry.com/
 * @copyright 2009 - 2023
 * @filesource
 */
namespace seekquarry\yioop\views\helpers;

use seekquarry\yioop\configs as C;

/**
 * This is a helper class is used to handle
 * closing an option window for an activity
 *
 * @author Chris Pollett
 */
class CloseHelper extends Helper
{
    /**
     * Draws a close window link on opposite side of current activity
     *
     * @param string $close_url the url to go to when the current task is
     *      closed
     * @param string $css_classes a string of additional CSS classes that might
     *  be used to style the closed button.
     */
    public function render($close_url, $css_classes="")
    {?>
        <div class="float-opposite media-buttons-container <?=$css_classes ?>">
        <a class="bold" href="<?=$close_url
            ?>"><span aria-label="<?=
            tl('close_helper_close'); ?>" role="img">X</span></a>
        </div><?php
    }
}