Qt: Split some console settings out into general settings

src/duckstation-qt/generalsettingswidget.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <QtWidgets/QWidget>
+
+#include "ui_generalsettingswidget.h"
+
+class QtHostInterface;
+
+class GeneralSettingsWidget : public QWidget
+{
+  Q_OBJECT
+
+public:
+  explicit GeneralSettingsWidget(QtHostInterface* host_interface, QWidget* parent = nullptr);
+  ~GeneralSettingsWidget();
+
+private Q_SLOTS:
+  void onEnableSpeedLimiterStateChanged();
+  void onEmulationSpeedValueChanged(int value);
+
+private:
+  Ui::GeneralSettingsWidget m_ui;
+
+  QtHostInterface* m_host_interface;
+};