📍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>

factory-kit/src/main/java/com/iluwatar/factorykit/App.java

@@ -23,8 +23,7 @@
 
 package com.iluwatar.factorykit;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import lombok.extern.slf4j.Slf4j;
 
 /**
  * Factory-kit is a creational pattern which defines a factory of immutable content with separated
@@ -38,10 +37,9 @@ import org.slf4j.LoggerFactory;
  * an input representing an instance of {@link WeaponType} that needs to be mapped explicitly with
  * desired class type in the factory instance.
  */
+@Slf4j
 public class App {
 
-  private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
-
   /**
    * Program entry point.
    *

factory-kit/src/main/java/com/iluwatar/factorykit/WeaponType.java

@@ -27,5 +27,8 @@ package com.iluwatar.factorykit;
  * Enumerates {@link Weapon} types.
  */
 public enum WeaponType {
-  SWORD, AXE, BOW, SPEAR
+  SWORD,
+  AXE,
+  BOW,
+  SPEAR
 }