Align Round cap and join buttons in F&S dialog
Misaligned in e0d7f044
Fix https://bugs.launchpad.net/inkscape/+bug/1567825
Now both round options are in the middle
These became misaligned when Miter join was moved from the first to the last column, so it was next to the miter join limit widget
I was going to open an issue, but the time it took so long to get a bisection, I just bit the bullet and opened an MR instead.