Reduce white space in global search facets sidebar on large screen sizes with fluid layout

Problem to solve

We have some additional white space in the new global search facets area that occurs on large screen sizes when the user has their layout settings set to Fluid.

example

Proposal

For large screen sizes (1440+?),
and only for users who have their layout settings set to Fluid,
let's reduce the facet columns to 2 (currently 3 on large screens)