Fix styling of organisation fields on details page

[pmackay]

No description provided.

[djwesto]

I mistakenly thought you were referring to the appearance of the details fields here on the Locations page:

But then I realised you're actually talking about these fields on the organisation details pages:

I'm going to wait until I can sit with @pmackay to work through this directly and review best practise from OpenLocal so that we're writing optimal code using @extends.