Moving tools to ReplicatedStorage + Bug precaution

- As mentioned in the TODO, since ReplicatedStorage is added, moved the toolmodels to there
- Global variable 'player', used getting game:GetService("Players")
(If for any weird reason the Players-service isn't called "Players", it won't error)
- When banned, the player now gets kicked properly using Player:Kick(), instead of just parenting it to nil
(And when that happens, also showing a message that you got banned)
(Not sure if the "Game has shutdown" message appears before/after this, maybe hiding the message)