Don't buildScreenViewData in UserProfile with no user
Don't buildScreenViewData in UserProfile with no user

Fixes errors in the log like:
"Error: undefined is not an object (evaluating 'r.name')"
and
"Rejection: TypeError: undefined is not an object (evaluating 'r.name')"
ajacksified/reddit-mobile,ajacksified/reddit-mobile,ajacksified/reddit-mobile,ajacksified/reddit-mobile