Add warning when all ranges of a step have the same skip logic

[manumoreira]

[manumoreira]

I might be missing some border cases here, but it looks like removing the "Next step" option can solve this kind of issues.
@matiasgarciaisaia I bet you have a good counter example

[matiasgarciaisaia]

It may solve the issue, but it will make you have to manually fix the previous step if you add a new one in the middle of a section - I don't think I like that.

It'd be a cheap way to avoid the issue, but I'd rather add a proper validation if we can.