reduce strain on the minecraft server

[unixfox]

• [x] Execute /rot, /tl and /next only on world change
• [x] Get the players playing on the server mixed with another method instead of /servers. Idea(s):
  • from the website: https://stratus.network/play
  • correlated with the issue #15, get the players list with bot.players and filter the players with a color other than these from observers.
• [x] Change the current rotation when the message Rotation update on the server appears: https://i.imgur.com/iJl5Vv0.png (optional)

[unixfox]

Catch when setnext map poll