Exclude social_worker from seeking_clients action

Created by: kitsane

https://trello.com/c/0GTcv6sK/127-bug-seeking-clients-button-is-restricted-view-is-always-shown

Done?

Done for approval?

• Acceptance criteria are met
• Code quality checks are green
• Readme updated if needed
• Story under test
• Mobile works
• Seeds created
• Code is reviewed

Done after the merge?

• Deployed to staging after the merge
• Tested manually on staging