chore: Java 스타일 수정

Author: github-actions

backend/src/main/java/io/f1/backend/domain/game/app/RoomService.java

@@ -318,7 +318,7 @@ public void reconnectSendResponse(Long roomId, UserPrincipal principal) {
                 MessageType.SYSTEM_NOTICE,
                 ofPlayerEvent(principal.getUserNickname(), RoomEventType.RECONNECT));
 
-        if (room.isPlaying()) {    
+        if (room.isPlaying()) {
             messageSender.sendPersonal(
                     userDestination,
                     MessageType.SYSTEM_NOTICE,