Updated: country code dictionary entries

[Miexil]

What does this PR do?

Adds Kosovo and South sudan entries to the country code dictionary.
Note: yes they do in fact have their matching flags ✅

Good PR checklist

• Title makes sense
• Is against the correct branch
• Only addresses one issue
• Properly assigned
• Added/updated tests
• Added/updated documentation with Figma design link. Don't forget to replace "design" by "file" in the URL. For example https://www.figma.com/file/example
• Migrated touched components to Glimmer Components
• Properly labeled

[linear-code]

DRA-4826 Make Country column facet searchable in CRM with the backend