fix(amazonq): chat export doesn't include Q responses

Author: avi-alpert

packages/core/src/codewhispererChat/controllers/chat/messenger/messenger.ts

@@ -90,7 +90,7 @@ export class Messenger {
                     followUpsHeader: undefined,
                     relatedSuggestions: undefined,
                     triggerID,
-                    messageID: '',
+                    messageID: triggerID,
                     userIntent: undefined,
                     codeBlockLanguage: undefined,
                     contextList: mergedRelevantDocuments,