Add JUnit Test Cases for CrawlingConfigHelper

[marevol]

This update introduces new JUnit test cases for CrawlingConfigHelper to enhance our testing framework. The main focus is on improving the testing coverage and ensuring the reliability of CrawlingConfigHelper. The changes include modifications in method parameter naming from sessionId to sessionCountId for clarity and consistency, as well as the addition of a conditional check in getDefaultConfig. Additionally, the introduction of a new test file, CrawlingConfigHelperTest.java, adds comprehensive tests covering various scenarios and functionalities of CrawlingConfigHelper. This effort is part of our ongoing commitment to maintain high-quality, reliable code.