Automatically show MOS Sizes and structure in Rank-2 Scale Generator

[vsicurella]

With a faster algorithm in place for calculating MOS sizes, we could simply show and update them automatically instead of using a button to refresh.

Similarly, but would need some more coding, I can also generate a string of "L" and "s" sizes that would essentially help users choose how many "down generators" they want to use.

Any thoughts?