Move UI folder

UI/UI_x_boxes.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "UI_item.hpp"
+
+class UI_x_boxes : public UI_item
+{
+    Q_OBJECT
+  public:
+    UI_x_boxes(std::string type, QObject *parent = nullptr);
+    UI_x_boxes(std::string type, std::string text, Color fg_color, Color bg_color, std::vector<std::string> options,
+               QObject *parent = nullptr);
+
+    void from_json(const json &j) override;
+    json to_json(size_t id) const override;
+
+  protected:
+    std::vector<std::string> m_options;
+};