modifying all the files to match the app

src/suyu/about_dialog.h

@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2018 suyu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <QDialog>
+
+namespace Ui {
+class AboutDialog;
+}
+
+class AboutDialog : public QDialog {
+    Q_OBJECT
+
+public:
+    explicit AboutDialog(QWidget* parent);
+    ~AboutDialog() override;
+
+private:
+    std::unique_ptr<Ui::AboutDialog> ui;
+};