📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

special-case/src/main/java/com/iluwatar/specialcase/InsufficientFunds.java

@@ -23,13 +23,11 @@
 
 package com.iluwatar.specialcase;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 public class InsufficientFunds implements ReceiptViewModel {
 
-  private static final Logger LOGGER = LoggerFactory.getLogger(InsufficientFunds.class);
-
   private String userName;
   private Double amount;
   private String itemName;