modified User to do not serialize password (#19, #18)

support-portal-backend/src/main/java/net/shyshkin/study/fullstack/supportportal/backend/domain/User.java

@@ -1,5 +1,6 @@
 package net.shyshkin.study.fullstack.supportportal.backend.domain;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.*;
 
 import javax.persistence.Entity;
@@ -29,7 +30,10 @@ public class User implements Serializable {
     private String firstName;
     private String lastName;
     private String username;
+
+    @JsonProperty(access = JsonProperty.Access.WRITE_ONLY)
     private String password;
+
     private String email;
     private String profileImageUrl;
     private LocalDateTime lastLoginDate;