remaining issues with rangebreaks and period tick labels

[alexcjohnson]

After #5089 there are a few minor issues remaining:
Quarter ticks aren't quite centered: https://codepen.io/alexcjohnson/pen/oNxGMOP

Occasionally the last tick is misaligned: https://codepen.io/alexcjohnson/pen/XWdeBqR?editors=0010