dependencies: #2449 bump maven-checkstyle-plugin from 3.1.0 to 3.2.0 + resolve chec… (#2464)

* #2449 bump maven-checkstyle-plugin from 3.1.0 to 3.2.0 + resolve checkstyle issues

* remove FileSelectorJFrame.java to resolve checkstyle issue

* remove FileSelectorJFrame.java to resolve checkstyle issue

* remove FileSelectorJFrame.java to resolve checkstyle issue

* add refactored file with correct filename to resolve checkstyle issue

* add the test data

* change filenames from JFrame to Jframe for checkstyle

* fix code smell from  sonar report

* add new testcases to improve the test coverage

* remove code smell

table-module/src/main/java/com/iluwatar/tablemodule/App.java

@@ -26,7 +26,6 @@ package com.iluwatar.tablemodule;
 
 import java.sql.SQLException;
 import javax.sql.DataSource;
-
 import lombok.extern.slf4j.Slf4j;
 import org.h2.jdbcx.JdbcDataSource;
 

table-module/src/main/java/com/iluwatar/tablemodule/UserTableModule.java

@@ -27,7 +27,6 @@ package com.iluwatar.tablemodule;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import javax.sql.DataSource;
-
 import lombok.extern.slf4j.Slf4j;