added sawing recipe for crafting station slab

wasn't going to integrate the slab crafting table but gtnh reminded me it exists

kubejs/server_scripts/crafting_station/recipes.js

@@ -4,4 +4,9 @@ ServerEvents.recipes(event => {
     "minecraft:crafting_table",
     "#forge:tools/saws"
   ])
+  event.remove({id: "craftingstation:crafting_station_slab"})
+  event.shapeless("craftingstation:crafting_station_slab", [
+    "craftingstation:crafting_station",
+    "#forge:tools/saws"
+  ])
 })