Newsroom styling and templates
Relates to LMW-119
Adds templates in Drupal to style the newsroom page.
Also adds some styles to the image atom so that images can be piped into it in certain aspect ratios and/or have the image centred within the container. Useful for the default image which needs to be centred but not stretched. But also allows for images to have an object-fit applied to them and for them to cover the container with a specific aspect-ratio.