Contacts layout improvements

improvements should including surfacing related contacts in the
format design

• remove p.type (Contact details) from the header and styles for that
• move related links to bottom of markup for consistent content flow
• split quick links and related links into separate lists
• move contact details to left and show in 1 column
• style in keeping with current contacts layout
https://www.gov.uk/contact-the-dvla

Related agileplanner story
https://www.agileplannerapp.com/boards/105200/cards/6316
Merge pull request #18 from alphagov/contacts-layout-improvments

Contacts layout improvements