[stable26] Fix npm audit

js/viewer-main.js.LICENSE.txt

@@ -121,6 +121,28 @@ object-assign
  *
  */
 
+/**
+ * @copyright Copyright (c) 2021 John Molakvoæ <[email protected]>
+ *
+ * @author John Molakvoæ <[email protected]>
+ *
+ * @license AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
 /**
  * @license React
  * react-dom.production.min.js