Scroll bar is absent in taxonomies dropdown
Description of problem: With number of organizations/locations(approx more than 30), it is difficult to switch between organization or locations as scroll bar is absent in new UI.
Version-Release number of selected component (if applicable): Satellite 6.4 snap 4
How reproducible: always
Steps to Reproduce:
1. Create 30+ organizations/locations
2. Try to switch to alphanumerically last organization/location
Actual results: Not able to scroll to last org/loc see attachments.
Expected results: Scroll bar should be present.