Improves Locallab tools advice tooltips management

Other:
- GUI widgets cleanup

rtgui/locallab.h

@@ -183,6 +183,9 @@ public:
     void foldAllButOne(LocallabTool* except);
     void openAllTools();
 
+    // Locallab tools advice tooltips management function
+    void updateShowtooltipVisibility(bool showtooltip);
+
 private:
     // Locallab tools management functions
     void addTool(Gtk::Box* where, LocallabTool* tool);