* Add invite initial response msg
re-do team leave logic to send more accurate messages
Players are still able to leave the team with the same results as before, however now the correct messages are sent to team chats (no fixes for local teams).
* chore: move team logic to separate container
Makes it easier to follow team logic when you're not bouncing between 3 classes in 3 files. Consolidates all team logic to 1 namespace in TeamContainer. No logic changes were done, only renaming and fixing errors from the moving. TeamData should be replaced with unique_ptrs at some point so the Shutdown method can be removed from TeamContainer.
