Coregistration fiducial buttons are positioned incorrectly

[henrikkauppi]

In coregistration Image and Tracker tabs, the buttons for Left Ear and Right Ear are positioned incorrectly. Based on the top-down view of the head, the Right Ear button should be on the right side of the head, and the Left Ear button should be on the left side of the head, but currently they are in the opposite, incorrect places. The position of these button should be switched to the opposite of their current position in the Image tab and also in the Tracker tab.

Current incorrect positions:

[Hafsa-shoaib989]

This issue has been resolved in pull request https://github.com/invesalius/invesalius3/pull/819. Please review it.