Slight refactor for the team slug in the edit subtitles button
Slight refactor for the team slug in the edit subtitles button

The team paramater comes from the GET params, with some extra checking
like making sure it's a valid team.   So let's use that instead of the
raw GET param.

pculture/unisubs,pculture/unisubs,pculture/unisubs,pculture/unisubs