Useful text gizmo centre

At the moment, there's no easy way of getting the text gizmo on-grid. We have to use a very fine grid, adjust it, then look at the normal grid size (or use precise move, adjust, back to grid) over and over until it's somewhere useful. This can be frustrating for the creator to make particularly in-scene text that is centred and on-grid for a sculpted sign, for example.