cool-cats: only fetch the ids to limit footprint
cool-cats: only fetch the ids to limit footprint

We don't really care much about the returned; all we want is the count
so there's no point in fetching all the category data.

vaishaliagola27/_s,carl-alberto/business-portfolio,vaishaliagola27/_s,andbaz/launchbaz,jchck/jchck_,vaishaliagola27/_s,madeso-uk/vcsassist,carl-alberto/business-portfolio,andbaz/launchbaz,jchck/jchck_,SparkartGroupInc/nadando,madeso-uk/vcsassist,solidusjs/wp-solidus