fix(tree) Fix error message for move from hydrated to unhydrated pare…

…nt (#23591)

## Description

Fix error message for move from hydrated to unhydrated parent

## Breaking Changes

None

packages/dds/tree/src/simple-tree/arrayNode.ts

@@ -993,7 +993,7 @@ abstract class CustomArrayNodeBase<const T extends ImplicitAllowedTypes>
 		if (!destinationField.context.isHydrated()) {
 			if (!(sourceField instanceof UnhydratedTreeSequenceField)) {
 				throw new UsageError(
-					"Cannot move elements from an unhydrated array to a hydrated array.",
+					"Cannot move elements from a hydrated array to an unhydrated array.",
 				);
 			}