Add jQuery modules

Refers to https://gitlab.cern.ch/webservices/webframeworks-planning/-/issues/723

Added:

• https://www.drupal.org/project/jquery_ui
• https://www.drupal.org/project/jquery_ui_accordion
• https://www.drupal.org/project/jquery_ui_datepicker

These modules are needed only for v9*. No need for back-porting in other versions.