ref. V-AP.04

As an administrator, I want to be able to publish and unpublish a voting.

Acceptance criteria

• As an administrator I can publish a voting
• As an administrator I can unpublish a voting
• When the voting is published it's available on the GraphQL API
• When the voting is published this action is visible on the AdminLog
• When the voting is unpublished this action is visible on the AdminLog