Add folder support

src/frames/renamedialog.h

@@ -0,0 +1,24 @@
+#ifndef RENAMEDIALOG_H
+#define RENAMEDIALOG_H
+
+#include <QDialog>
+
+namespace Ui {
+class RenameDialog;
+}
+
+class RenameDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit RenameDialog(QString oldName, QWidget *parent = nullptr);
+    ~RenameDialog();
+
+    QString getNewName();
+
+private:
+    Ui::RenameDialog *ui;
+};
+
+#endif // RENAMEDIALOG_H