Reorganise meta list styles to be more logical
Reorganise meta list styles to be more logical

The behavour of meta list styles was previous unpredictable,
and a good example of this was search results that had to
combine 2 modifier to get the required look, but also resulted
in lots of styles overriding each other and hard to debug

This refactored version has a more logal use of the base styles
and modifiers so the css is simpler and search results only need
to use one modifier.

uktrade/data-hub-frontend,uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend,uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend