URDF export does place things correctly

[elad-eyal]

Describe the Bug
A clear and concise description of what the bug is.

Steps to Reproduce

1. Open WeBots R2023b (for Windows)
2. Open Sample "Mybots"
3. in the "Scene Tree", right click on Robot "MyRobot" and select Export URDF
4. save the file.
6. Launch rviz2 (in my case RViz version 11.2.10 (ROS 2) running on Ubuntu 22.04 WSL2)
7. Under "Display" click "Add".
8. Select rviz_default_plugins --> RobotModel
9. Under RobotModel --> Description Source select File
10. Under RobotMoodel ----> Description File, select the file from before.
11. Surprisingly the two wheels are not aligned, see below:

12. It's not only rviz. Visit http://www.mymodelrobot.appspot.com/5674976526991360 and paste the content of that file and click "Load robot URDF". Again the sheels are not aligned.

Expected behavior
The wheels should be appear in the URDF tools in the same place as in webots