ENH: use icon when can not connect printer

jira: [STUDIO-11973]
Change-Id: I17e927c4b5f061cd66ed0b6015f43358e673ef9b
(cherry picked from commit 1bc83e42a77bb066610f6865c29481ee50dd1a23)

src/slic3r/GUI/SelectMachine.hpp

@@ -373,7 +373,6 @@ protected:
     TextInput*                          m_rename_input{nullptr};
     wxTimer*                            m_refresh_timer{ nullptr };
     wxScrolledWindow*                   m_sw_print_failed_info{nullptr};
-    Label*                              m_connect_printer_help_hyperlink{nullptr};
     ScalableBitmap *                    rename_editable{nullptr};
     ScalableBitmap *                    rename_editable_light{nullptr};
     wxStaticBitmap *                    timeimg{nullptr};
@@ -531,6 +530,8 @@ public:
 private:
     void  Create();
 
+    void  OnBtnQuestionClicked(wxCommandEvent& event);
+
 private:
     // owner
     SelectMachineDialog* m_select_dialog;
@@ -539,6 +540,7 @@ private:
     Label*          m_stext_printer_title{ nullptr };
     ComboBox*       m_comboBox_printer{ nullptr };
     ScalableButton* m_button_refresh{ nullptr };
+    ScalableButton* m_button_question { nullptr };
 
     wxStaticBitmap* m_bed_image{ nullptr };
     Label*         m_text_bed_type;