Improve scaling of pictures in side-by-side arrangements

_posts/2020/01/2020-01-07-contributing-in-4-simple-steps.md

_posts/2022/08/2022-08-01-update-cloudportal.md

_sass/boilerplate/_breakpoints.scss

_sass/boilerplate/_responsive.scss

assets/css/image-scaling.scss

assets/css/media-page-images.scss

assets/css/services/services-page-images.scss

hifisfor/itsupport.md

hifisfor/rse.md

hifisfor/scientists.md

media/index.md

services/cloud/provider.md