Redirect to /teams/new after user registers if in team mode (#1015)
Redirect to /teams/new after user registers if in team mode (#1015)

* Redirect to `/teams/new` instead of `/challenges` after the user registers in team mode
CTFd/CTFd,isislab/CTFd,isislab/CTFd,CTFd/CTFd,ajvpot/CTFd,ajvpot/CTFd,ajvpot/CTFd,CTFd/CTFd,LosFuzzys/CTFd,LosFuzzys/CTFd,CTFd/CTFd,isislab/CTFd,LosFuzzys/CTFd,isislab/CTFd,LosFuzzys/CTFd,ajvpot/CTFd