Don't let page title be too squashed

`25px` is a little too close to the page header, but bumping this to
`40px` gives enough space, while retaining the non-overly verbose
spacing.
5 jobs for <span class="ref-name">defect/margin</span> in 7 minutes and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #63121415
build_deploy_image

00:00:49

passed #63121414
build_image

00:01:28

 
  Review
passed #63121416
review_deploy

00:01:01

passed #63121417
allowed to fail manual
review_stop

00:00:46

 
  Test
passed #63121418
test_image

00:03:46