[desktop] Data Manager, data import/export (#2700)

This adds a "Data Manager" dialog to the Tools menu. The Data Manager allows for the following operations:
- Open w/ system file manager
- Clear
- Export
- Import

On any of the following directories:
- Save (w/ profile selector)
- UserNAND
- SysNAND
- Mods
- Shaders

TODO for the future:
- "Cleanup" for each directory
- TitleID -> Game name--let users clean data for a specific game if applicable

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2700
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

src/yuzu/data_dialog.h

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef DATA_DIALOG_H
+#define DATA_DIALOG_H
+
+#include <QDialog>
+#include "frontend_common/data_manager.h"
+#include "qt_common/qt_string_lookup.h"
+
+#include "ui_data_widget.h"
+
+namespace Ui {
+class DataDialog;
+}
+
+class DataDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit DataDialog(QWidget *parent = nullptr);
+    ~DataDialog();
+
+private:
+    std::unique_ptr<Ui::DataDialog> ui;
+};
+
+class DataWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit DataWidget(FrontendCommon::DataManager::DataDir data_dir,
+                        QtCommon::StringLookup::StringKey tooltip,
+                        const QString &exportName,
+                        QWidget *parent = nullptr);
+
+public slots:
+    void clear();
+    void open();
+    void upload();
+    void download();
+
+    void scan();
+
+private:
+    std::unique_ptr<Ui::DataWidget> ui;
+    FrontendCommon::DataManager::DataDir m_dir;
+    const QString m_exportName;
+
+    std::string selectProfile();
+};
+
+#endif // DATA_DIALOG_H