Issue #3288347: Drupal 10 compatability and taken care issue like export and zip.

Following issues has been taken care

• Port connector to Drupal 10 (Closes #3288347).
• Handle issue for manual import.
• Remove errors occurred on logs which are available on job's detail page.
• Corrected behavior when 'Transfer all files as zip' is enabled.
• Corrected behavior when 'Use one export file for all items in job' is unchecked