Address armor stand invisibility edge case

See https://github.com/GeyserMC/Geyser/issues/2780

core/src/main/java/org/geysermc/geyser/entity/GeyserDirtyMetadata.java

@@ -34,7 +34,7 @@ import java.util.Map;
 /**
  * A write-only wrapper for temporarily storing entity metadata that will be sent to Bedrock.
  */
-public class GeyserDirtyMetadata {
+public final class GeyserDirtyMetadata {
     private final Map<EntityData, Object> metadata = new Object2ObjectLinkedOpenHashMap<>();
 
     public void put(EntityData entityData, Object value) {

core/src/main/java/org/geysermc/geyser/entity/type/living/ArmorStandEntity.java

@@ -136,7 +136,7 @@ public class ArmorStandEntity extends LivingEntity {
             }
 
             isSmall = newIsSmall;
-            if (!isMarker) {
+            if (!isMarker && !isInvisible) { // Addition for isInvisible check caused by https://github.com/GeyserMC/Geyser/issues/2780
                 toggleSmallStatus();
             }
         }

core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaSetEntityDataTranslator.java

@@ -27,12 +27,12 @@ package org.geysermc.geyser.translator.protocol.java.entity;
 
 import com.github.steveice10.mc.protocol.data.game.entity.metadata.EntityMetadata;
 import com.github.steveice10.mc.protocol.packet.ingame.clientbound.entity.ClientboundSetEntityDataPacket;
-import org.geysermc.geyser.entity.type.Entity;
 import org.geysermc.geyser.entity.EntityDefinition;
+import org.geysermc.geyser.entity.InteractiveTagManager;
+import org.geysermc.geyser.entity.type.Entity;
 import org.geysermc.geyser.session.GeyserSession;
 import org.geysermc.geyser.translator.protocol.PacketTranslator;
 import org.geysermc.geyser.translator.protocol.Translator;
-import org.geysermc.geyser.entity.InteractiveTagManager;
 
 @Translator(packet = ClientboundSetEntityDataPacket.class)
 public class JavaSetEntityDataTranslator extends PacketTranslator<ClientboundSetEntityDataPacket> {