Reduce amount of Skyslime and Amethyst geodes

[falseresync]

There's 4 amethyst geodes directly under our base and 6 Skyslime geodes within 10 chunks from it

[Monster-Zer0]

weird, no matter how much I edit this, it never changes the spread

https://github.com/Alpha-s-Stuff/TinkersConstruct/blob/1.18.2-new/src/main/resources/data/tconstruct/worldgen/structure_set/overworld_sky_island.json

[falseresync]

It might be that these weights are co-dependent. I mean by setting weights to 4 and 3 you're not affecting the absolute amounts of these structures, but instead telling it to generate structure A 4/3 times more than B. Not sure though, you should ask Alpha