Fix join button on team list page.
Fix join button on team list page.

For: https://unisubs.sifterapp.com/projects/12298/issues/497366/comments

wevoice/wesub,norayr/unisubs,ReachingOut/unisubs,ujdhesa/unisubs,norayr/unisubs,eloquence/unisubs,ofer43211/unisubs,norayr/unisubs,wevoice/wesub,ujdhesa/unisubs,wevoice/wesub,pculture/unisubs,norayr/unisubs,ofer43211/unisubs,eloquence/unisubs,ReachingOut/unisubs,eloquence/unisubs,pculture/unisubs,pculture/unisubs,ujdhesa/unisubs,ReachingOut/unisubs,ofer43211/unisubs,ofer43211/unisubs,ujdhesa/unisubs,eloquence/unisubs,pculture/unisubs,wevoice/wesub,ReachingOut/unisubs