Boost: Move icon for course section is misplaced/misaligned

Note: Test on Boost Create a Topics format course and a Weekly format course. Make sure both courses have at least 2 sections (aside from the general section). Go to the course with topics format. Turn editing on. Check the move icon for the section. Confirm that it looks nicely aligned with the section name. Do the same for the Weekly format course and confirm that the course section move icon looks nicely aligned with the section name.