docs: Added a Copyright in NoteEditorActionsListener

Author: GuilhermeD9

AnkiDroid/src/main/java/com/ichi2/anki/noteeditor/NoteEditorActionsListener.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2025 Guilherme Silva <sgsouza.173@gmail.com>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
 package com.ichi2.anki.noteeditor
 
 interface NoteEditorActionsListener {