Currently our main index file loads CSS which is already nicely split per post type into the same file that is served on all posts types.

We could serve this as a separate file for each post type.  The same could also be done for CSS intended only for the search page.

See https://github.com/greenpeace/planet4-master-theme/blob/db3e97c97c3df43506a31bc027f483e749f51c1c/assets/src/scss/style.scss#L48-L72 

• Check effect of any changed CSS order.