* DEV: expose primary group as classes in more areas. Add group classes in the group posts pages Add primary group name as a class on the user card
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
This reverts commit 793f933b6b28862dfb7995ef938da4029bc2e10c.