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/WebViewDialog.hpp

@@ -94,6 +94,7 @@ public:
 
 public:
     void SendRecentList(int images);
+    void SetLoginPanelVisibility(bool bshow);
     void SendDesignStaffpick(bool on);
     void OpenModelDetail(std::string id, NetworkAgent *agent);
     void SendLoginInfo();