Complete Missing Stone Block Variants

I would like to suggest adding missing wall variants for polished diorite, polished andesite, and polished granite, as well as stairs and walls made of smooth stone.

Minecraft already offers many building variants, such as slabs, stairs, and walls for different stone types. However, some combinations are still missing, limiting the possibilities for builders who want consistent designs.

Adding these variants would give players more creative freedom, improve architectural consistency, and make it easier to build detailed structures without relying on workarounds or mods.

These additions would fit naturally into the existing building system while preserving Minecraft's original style.

Thank you for considering this suggestion!