Dedupe section break function (create <hr> element)

src/endWeek/events/death.js

src/endWeek/events/expire.js

src/endWeek/events/retire.js

src/events/intro/customizeSlaveTrade.js

src/events/scheduled/burst/burst.js

src/facilities/nursery/utils/nurseryUtils.js

src/facilities/studio/studio.js

src/js/birth/birth.js

src/js/slaveListing.js

src/js/utilsDOM.js