Delete profile could also include deletion of related projects

[MyPyDavid]

Rationale / Begründung

Currently, the delete profile button only deletes Memberships of Projects. However, in some cases also related Project and their Values could be deleted. For example, when the user is the only Member or Owner of a Project. The behaviour could be toggled via featue flag but behaviour should be clear to the user, that related projects will be deleted or not.

Affected

Users

Minimal functionality

• delete profile should include deletion of related projects and project values
• pass membership/owner roles to other project members

Nice-to-have functionality

• selection of projects to delete

References / Verweise

• https://github.com/rdmorganiser/rdmo/pull/104
• https://github.com/rdmorganiser/rdmo/pull/601