TD-5: Cleanup and Finalizing

src/main/java/de/towerdefence/server/server/channels/match/MatchWebsocketHandler.java

@@ -84,7 +84,8 @@ public class MatchWebsocketHandler extends JsonWebsocketHandler {
             String payload = message.getPayload();
             if (!Objects.equals(
                 objectMapper.readTree(payload).get("$id").asText(),
-                        RequestTowerPlacingMessage.MESSAGE_ID)) {
+                RequestTowerPlacingMessage.MESSAGE_ID
+            )) {
                 this.closeSession(session, CloseStatus.BAD_DATA);
                 return;
             }