Organelle suggestions should be less likely to suggest the nucleus

[hhyyrylainen]

as it suggests it too early very often now. Might be related to: #5799 or even entirely caused by that. But anyway we need to make sure the suggestion system doesn't accidentally suggest adding a nucleus to new players way too early.

There's a save to test this problem attached in issue #5799

[hhyyrylainen]

This is probably done with #5802 but I'll leave this open until closer to the release to keep an eye on this.