Templates that should be centered on tokens are not when using a hex grid

[seanpg71]

I was specifically having issues with Misty Step, but presumably it'll be an issue with anything using this sort of code to try to center something on a square:

x: token.x + canvas.grid.size / 2,
y: token.y + canvas.grid.size / 2, 

Due to the nature of mapping a circle on to a hexagon, the radius isn't ever going to match the range exactly. But currently it's additionally weirdly offset making the range larger on one side of the token than the other.

I switched mine to this which works for my hexagonal rows - but would cause even more even problems for someone using columns:

    x: token.x + canvas.grid.size * (canvas.grid.isHex ? Math.sqrt(3) / 4 : 1 / 2),
    y: token.y + canvas.grid.size / 2,

Didn't see an obvious way to determine row vs columns and that was good enough - but presumably there is one.