Fix passing empty item stacks to Jade (#1000)

Author: Technici4n

src/main/java/aztech/modern_industrialization/compat/jade/server/MachineComponentProvider.java

@@ -161,7 +161,10 @@ public List<ViewGroup<ItemStack>> getGroups(Accessor<?> accessor) {
 
         private void addItems(ViewGroup<ItemStack> data, List<? extends ItemAccess> stacks) {
             for (var stack : stacks) {
-                data.views.add(stack.toStack());
+                var vanillaStack = stack.toStack();
+                if (!vanillaStack.isEmpty()) {
+                    data.views.add(vanillaStack);
+                }
             }
         }