UI: Massive revamp, new features and improvements

src/duckstation-qt/foldersettingswidget.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <QtWidgets/QWidget>
+
+#include "ui_foldersettingswidget.h"
+
+class SettingsDialog;
+
+class FolderSettingsWidget : public QWidget
+{
+  Q_OBJECT
+
+public:
+  FolderSettingsWidget(SettingsDialog* dialog, QWidget* parent);
+  ~FolderSettingsWidget();
+
+private:
+  Ui::FolderSettingsWidget m_ui;
+};