Update netflix2trakt.py

[dboute]

TraktIO.sync() can be called before authentication is done in file "netflix2trakt.py" line "228"

[jensb89]

I think it would actually be better to do the authentification before searching for the entries via the TMDB Api, i.e. at the beginning of the file.
Here, it doesn't bring much of an advantage, only that the prints are coming only after the authentification