Update copyright years

"fscoli next" is based on the ["Fachschaft Computerlinguistik WordPress Theme"][original], Copyright 2015 personads, which is also distributed under the terms of the GNU General Public License v3.0.

It contains modifications made by Jakob Moser in 2020–2025, namely added responsiveness, a few bug fixes and a rewrite of the underlying HTML, PHP and CSS. Jakob also modified the `screenshot.png` image to include the name of the new theme. The original design work by personads was left more or less intact, so there is little visual difference between the two themes.

It contains modifications made by Jakob Moser in 2020–2026, namely added responsiveness, a few bug fixes and a rewrite of the underlying HTML, PHP and CSS. Jakob also modified the `screenshot.png` image to include the name of the new theme. The original design work by personads was left more or less intact, so there is little visual difference between the two themes.

GitLab provides [a list of the differences between "fscoli next" and "Fachschaft Computerlinguistik WordPress Theme"][diff].

 * Author: personads :: Maximilian Müller-Eberstein (ursprüngliche Version und Design); Jakob Moser

 * Author URI: https://personads.me/

 *

 * Version: 2.17.4

 * Version: 2.17.5

 * Requires PHP: 8.0

 *

 * License: GNU General Public License v3.0

 * "Fachschaft Computerlinguistik WordPress Theme" is distributed under the terms of the GNU GPL and can be obtained at

 * https://gitlab.cl.uni-heidelberg.de/fachschaft/fscoli-next/-/tags/original

 *

 * The "fscoli next" WordPress theme contains modifications made by Jakob Moser (2020--2025), which are listed in more detail in

 * The "fscoli next" WordPress theme contains modifications made by Jakob Moser (2020--2026), which are listed in more detail in

 * the README.md provided with this theme. "fscoli next" is distributed under the terms of the GNU GPL.

 *

 * This file contains CSS rules adapted from the Stack Overflow answer https://stackoverflow.com/a/52226523/