Design: National Safety Pages

[colinmurphy01]

Follow on from #1923

The content model for these pages is documented here, and includes a full set of example copy.

Design questions remaining might include:

• How can/should we break up the page visually so that the large volume of copy appears less dense?
• To what extent can/should we incorporate photos and/or safety graphics?
• How should users be able to navigate through the content on this page, and to content on other safety pages?
• Should this be built as a distinct content type, or a basic page template?
  • Recommend a distinct content type to limit unintended uses, but want to consider all options

[colinmurphy01]

@kmranjo can you document the design work needed from #1923 here?