Only add player equipment to EquipmentArgumentType

plugin/src/main/java/com/alttd/essentia/commands/argumement/EquipmentArgumentType.java

@@ -42,6 +42,9 @@ public class EquipmentArgumentType implements CustomArgumentType.Converted<Equip
     public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> context, SuggestionsBuilder builder) {
         Collection<String> possibleValues = new ArrayList<>();
         for (EquipmentSlot equipmentSlot : EquipmentSlot.values()) {
+            if (!equipmentSlot.isHand() || !equipmentSlot.isArmor())
+                continue;
+
             possibleValues.add(equipmentSlot.name().toLowerCase());
         }