No movement when clicking on UI

I do not know if this has been already suggested, but it is very annoying for me.

When clicking on the User Interface, the character move as if I click on the game screen.

This is particularly annoying expecially in the 'orange zone' I painted below.



Some times when trying to click on the spell square, I miss the square and the player moves: I think it would be better if the character does nothing in this case.