message: update routes to point to new draft.page route
diff: <nav.links.default
  data-test-goto-previous-page
  data-analytics-name='Sidenav back'
  - @route='registries.drafts.draft'
  + @route='registries.drafts.draft.page'
  @models={{array @draftManager.draftId @draftManager.prevPageParam}}
  >
  <nav.icon @icon='arrow-left' />
  <nav.links.default
  data-test-goto-next-page
  data-analytics-name='Sidenav next'
  - @route='registries.drafts.draft'
  + @route='registries.drafts.draft.page'
  @models={{array @draftManager.draftId @draftManager.nextPageParam}}
  @onClick={{@draftManager.setPageIsVisited}}
  >
  <nav.links.default
  data-test-goto-review
  data-analytics-name='Sidenav review'
  - @route='registries.drafts.draft'
  + @route='registries.drafts.draft.page'
  @models={{array @draftManager.draftId 'review'}}
  >
  <nav.icon @icon='arrow-right' />
  