Refactor role ids into config

[JedHazaymeh]

Extract role ids into config.py, so config should look like:

CHANNEL_IDS = {
  "lobby": 627542044390457350
}

ROLE_IDS = {
  "Webgroup": 1166751688598761583,
  "Gamez": 1089204642241581139,
  "Croomer": 1172696659097047050
}