feat: reload sell confirmation UI to update cached layout

Author: ptthanh02

core/src/main/java/github/nighter/smartspawner/SmartSpawner.java

@@ -496,6 +496,11 @@ public void reload() {
         spawnerStorageUI.reload();
         filterConfigUI.reload();
 
+        // Reload sell confirm UI to update cached layout
+        if (spawnerSellConfirmUI != null) {
+            spawnerSellConfirmUI.reload();
+        }
+
         // reload services
         integrationManager.reload();
         spawnerMenuAction.reload();