Added another front page space for Yaffs info. Added roave security for composer.

[yaffs-website] / web / core / themes / seven / seven.breakpoints.yml

seven.mobile:
  label: mobile
  mediaQuery: '(min-width: 0em)'
  weight: 0
  multipliers:
    - 1x
seven.wide:
  label: wide
  mediaQuery: 'screen and (min-width: 40em)'
  weight: 1
  multipliers:
    - 1x