Activate propagating joint values in ArViz Coin visualization to fix visualization of fingers

source/arviz_godot/lib/avi/scene/RobotElementNode.cpp

@@ -137,6 +137,7 @@ avi::scene::RobotElementNode::updateAttributes(int flag,
     if (robotChanged || !robot)
     {
         robot = this->loadRobot(project, filename);
+        robot->setPropagatingJointValuesEnabled(true);
     }
 
     if (!robot)