Template should handle 204 No Content better

[PerfectlyNormal]

[PerfectlyNormal]

Might be a bit of a user error.
If we specify that we return an instance of X, returning No Content instead feels kinda wrong. Should be Not Found if we really don't have anything, otherwise make it nullable and return nothing that way.

Or maybe we need to see that it is a nullable return type, make it Promise<SomeDto | Response> and check the status code then