[STIXTwoTextVF-Roman.vfj] In `n`, x pos of `top` anchor in `n` does not compensate for width change across masters

[twardoch]

x position of top anchor in n upright masters is the same, i.e. has not width-specific displacement:

This results in a "wobble" as you interpolate, because the marks over n attach in different width-relative x positions:

[twardoch]

👍

[tiroj]

Fixed.