chore: update project branding to citron

src/citron/qt_common.h

@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QWindow>
+#include "core/frontend/emu_window.h"
+
+namespace QtCommon {
+
+Core::Frontend::WindowSystemType GetWindowSystemType();
+
+Core::Frontend::EmuWindow::WindowSystemInfo GetWindowSystemInfo(QWindow* window);
+
+} // namespace QtCommon