CLDC-3743: Allow coordinators to manage schemes for recently absorbed organisations

[RachaelBooth]

No description provided.

[RachaelBooth]

Aims:

• Data coordinators can view / create / edit / otherwise manage schemes at recently absorbed organisations, and similarly locations at these schemes
• Schemes are automatically deactivated when their organisation is merged
• Everything you'd expect to work given this does

[github-actions]

Created review app at https://review.submit-social-housing-data.communities.gov.uk/2764