Show edit profile checkboxes to left of labels

Would have preferred not to match #field_beta and #field_newsletter
directly, given that we will add new checkboxes in the future, but I
cannot think of another way to match only the needed elements without
adjusting `templates/includes/common_macros.py`.
Merge pull request #1740 from openjck/newsletter-more-design

Show edit profile checkboxes to left of labels