add license header

src/iDescriptor-ui.h

@@ -1,3 +1,22 @@
+/*
+ * iDescriptor: A free and open-source idevice management tool.
+ *
+ * Copyright (C) 2025 Uncore <https://github.com/uncor3>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 #include <QAbstractButton>
 #include <QApplication>