Feature/home page improve (#4602)

* Add new MyRRF custom printer

* hide user panel when networking plugin is not installed/used

* Fixed a bug that promption of installing plugin notification was not displayed when trying to switch to Bambu device tab

* replay missing_connection animated image when switching to device tab

src/slic3r/GUI/PrinterWebView.hpp

@@ -41,6 +41,7 @@ public:
     void OnClose(wxCloseEvent& evt);
     void OnError(wxWebViewEvent& evt);
     void OnLoaded(wxWebViewEvent& evt);
+    void reload();
 private:
     void SendAPIKey();