v2.3.1

Changed

• The post-transaction "Stay informed" contact flow now surfaces the submission result instead of failing silently. A successful subscribe replaces the input and "No thanks" with a confirmation message ("Thanks for getting involved…") and a "Close" button; a failure shows a predefined error message above the input (with a link to submit a help request) and keeps the form editable so the user can retry. New strings are translated for es, ko, and zh.