moved main code , to emulator,cpp , emulator.h class

src/emulator.h

@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <filesystem>
+#include <thread>
+
+#include <common/singleton.h>
+#include "common/discord.h"
+#include "core/linker.h"
+#include "input/controller.h"
+#include "sdl_window.h"
+
+namespace Core {
+
+class Emulator {
+public:
+    Emulator();
+    ~Emulator();
+
+    void Run(const std::filesystem::path& file);
+
+private:
+    Discord::RPC discord_rpc;
+    Input::GameController* controller = Common::Singleton<Input::GameController>::Instance();
+    Frontend::WindowSDL window;
+};
+
+} // namespace Core