Fix config typo

src/main/resources/messages.yml

···
   player-same-server: "You are already connected to <red><server>"
   target-no-queue: "<red><player><yellow> is not queued for any server"
   target-unknown: "Unknown player: <red><player>"
-  queue-cannot-join: "Sorry, you're currently unable to join the queue:<break> <red><reason>"
+  queue-cannot-join: "Sorry, you're currently unable to join the queue:<br> <red><reason>"
   queue-removed-error: "Sorry, you have been removed from the queue due to a fatal error:<break>"
   queue-removed: "You have been removed from the queue by an admin"
   queue-destroyed: "Queueing for <red><server><yellow> is no longer available"