general: add default configurations for applet mode

src/yuzu/configuration/configure_applets.h

@@ -0,0 +1,48 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QWidget>
+#include "yuzu/configuration/configuration_shared.h"
+
+class QCheckBox;
+class QLineEdit;
+class QComboBox;
+class QDateTimeEdit;
+namespace Core {
+class System;
+}
+
+namespace Ui {
+class ConfigureApplets;
+}
+
+namespace ConfigurationShared {
+class Builder;
+}
+
+class ConfigureApplets : public ConfigurationShared::Tab {
+public:
+    explicit ConfigureApplets(Core::System& system_,
+                              std::shared_ptr<std::vector<ConfigurationShared::Tab*>> group,
+                              const ConfigurationShared::Builder& builder,
+                              QWidget* parent = nullptr);
+    ~ConfigureApplets() override;
+
+    void ApplyConfiguration() override;
+    void SetConfiguration() override;
+
+private:
+    void changeEvent(QEvent* event) override;
+    void RetranslateUI();
+
+    void Setup(const ConfigurationShared::Builder& builder);
+
+    std::vector<std::function<void(bool)>> apply_funcs{};
+
+    std::unique_ptr<Ui::ConfigureApplets> ui;
+    bool enabled = false;
+
+    Core::System& system;
+};