fixes

src/node_progress_bar.h

@@ -11,6 +11,7 @@ public:
     NodeButton* btn_cancel;
     NodeText* m_title;
     NodeBorder* m_progress;
+    NodeBorder* m_body;
     int m_total = 0;
     int m_count = 0;
     virtual Node* clone_instantiate() const override;
@@ -18,4 +19,5 @@ public:
     void increment() noexcept;
     // set progress where p [0, 1]
     void set_progress(float p) noexcept;
+    virtual void added(Node* parent) override;
 };