add fallback url
txt.write("PLEX_USERNAME=" + username + "\n")
txt.write("PLEX_TOKEN=" + token + "\n")
txt.write("PLEX_BASEURL=" + plex._baseurl + "\n")
+ txt.write("PLEX_FALLBACKURL=http://localhost:32400\n")
print("Plex token and baseurl for {} have been added in .env file:".format(username))
print("PLEX_TOKEN={}".format(token))
print("PLEX_BASEURL={}".format(plex._baseurl))
