📍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/test/java/com/iluwatar/factorykit/factorykit/FactoryKitTest.java

@@ -37,12 +37,12 @@ import org.junit.jupiter.api.Test;
 /**
  * Test Factory Kit Pattern
  */
-public class FactoryKitTest {
+class FactoryKitTest {
 
   private WeaponFactory factory;
 
   @BeforeEach
-  public void init() {
+  void init() {
     factory = WeaponFactory.factory(builder -> {
       builder.add(WeaponType.SPEAR, Spear::new);
       builder.add(WeaponType.AXE, Axe::new);
@@ -55,7 +55,7 @@ public class FactoryKitTest {
    * {@link Spear}
    */
   @Test
-  public void testSpearWeapon() {
+  void testSpearWeapon() {
     var weapon = factory.create(WeaponType.SPEAR);
     verifyWeapon(weapon, Spear.class);
   }
@@ -65,7 +65,7 @@ public class FactoryKitTest {
    * {@link Axe}
    */
   @Test
-  public void testAxeWeapon() {
+  void testAxeWeapon() {
     var weapon = factory.create(WeaponType.AXE);
     verifyWeapon(weapon, Axe.class);
   }
@@ -76,7 +76,7 @@ public class FactoryKitTest {
    * {@link Sword}
    */
   @Test
-  public void testWeapon() {
+  void testWeapon() {
     var weapon = factory.create(WeaponType.SWORD);
     verifyWeapon(weapon, Sword.class);
   }