Prevent link and unlink edits for link types not backed my Many to Many links #1876
Description
In order to modify links not backed by a many to many link, its required to send a modifyEdit that modifies the foreign key property.
While we wait for the backend to be able to support these edits, we should cause a compile time error when traversing in the one direction of a link. We currently don't gate behind anything.
We probably need to look at the Link metadata and the multiplicity of the direction we're traversing
Unfortunately, we cannot know if a link is backed by a 1 to many link or many to many link with the data we get back from API Gateway, so we cannot add a compile time error when the link is traversed in the many direction. This will be resolved within functions as a local preview error