Merge with assign

restservice/src/main/java/com/plannaplan/security/AuthenticationProvider.java

@@ -51,7 +51,7 @@ public class AuthenticationProvider extends AbstractUserDetailsAuthenticationPro
 
             @Override
             public String getUsername() {
-                return user.getName() + " " + user.getSurname();
+                return user.getEmail();
             }
 
             @Override