yuzu/configuration: create UI tab and move gamelist settings there

src/yuzu/configuration/configure_ui.h

@@ -0,0 +1,38 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <QWidget>
+
+namespace Ui {
+class ConfigureUi;
+}
+
+class ConfigureUi : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit ConfigureUi(QWidget* parent = nullptr);
+    ~ConfigureUi() override;
+
+    void ApplyConfiguration();
+
+private:
+    void RequestGameListUpdate();
+
+    void SetConfiguration();
+
+    void changeEvent(QEvent*) override;
+    void RetranslateUI();
+
+    void InitializeIconSizeComboBox();
+    void InitializeRowComboBoxes();
+
+    void UpdateFirstRowComboBox(bool init = false);
+    void UpdateSecondRowComboBox(bool init = false);
+
+    std::unique_ptr<Ui::ConfigureUi> ui;
+};