📍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>

front-controller/src/test/java/com/iluwatar/front/controller/ApplicationExceptionTest.java

@@ -23,10 +23,10 @@
 
 package com.iluwatar.front.controller;
 
-import org.junit.jupiter.api.Test;
-
 import static org.junit.jupiter.api.Assertions.assertSame;
 
+import org.junit.jupiter.api.Test;
+
 /**
  * Date: 12/13/15 - 1:35 PM
  *
@@ -35,7 +35,7 @@ import static org.junit.jupiter.api.Assertions.assertSame;
 public class ApplicationExceptionTest {
 
   @Test
-  public void testCause() {
+  void testCause() {
     final var cause = new Exception();
     assertSame(cause, new ApplicationException(cause).getCause());
   }