fix(pocket-base): accept recovery compass metadata

src/main/java/games/dmg/spigotbase/PocketBaseKeystoneService.java

@@ -27,7 +27,6 @@ import org.bukkit.event.player.PlayerTeleportEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.ShapedRecipe;
 import org.bukkit.inventory.meta.ItemMeta;
-import org.bukkit.inventory.meta.CompassMeta;
 import org.bukkit.persistence.PersistentDataType;
 
 final class PocketBaseKeystoneService implements Listener {
@@ -201,8 +200,13 @@ final class PocketBaseKeystoneService implements Listener {
 
     static ItemStack createKeystone(NamespacedKey markerKey) {
         ItemStack item = new ItemStack(Material.RECOVERY_COMPASS);
+        decorateKeystone(item, markerKey);
+        return item;
+    }
+
+    static void decorateKeystone(ItemStack item, NamespacedKey markerKey) {
         ItemMeta metadata = item.getItemMeta();
-        if (!(metadata instanceof CompassMeta)) {
+        if (metadata == null) {
             throw new IllegalStateException("Recovery Compass metadata is unavailable");
         }
         metadata.displayName(Component.text(
@@ -218,7 +222,6 @@ final class PocketBaseKeystoneService implements Listener {
             markerKey, PersistentDataType.BYTE, (byte) 1
         );
         item.setItemMeta(metadata);
-        return item;
     }
 
     static RecipeSpec recipeSpecification() {