Update GameManager

src/main/resources/languages/en_US.yml

@@ -9,6 +9,7 @@ default:
 game:
   join: '<prefix><green><name></green> <gray>has joined the game.</gray>'
   quit: '<prefix><red><name></red> <gray>has quit the game.</gray>'
+  lobby-idle: '<prefix><gray>Waiting for more players... (<current> / <min>)</gray>'
   start-aborted: '<prefix><red>The game start has been aborted due to the lack of players!</red>'
   started: '<prefix><green>The game has started! Good Luck!</green>'
   invincibility-start: '<prefix><yellow>Invincibility has started and ends in <time> second(s)!</yellow>'