requestProof refactor, pr comments

Author: alexnuttall

lambdas/backend-api/src/templates/app/template-client.ts

@@ -424,16 +424,16 @@ export class TemplateClient {
 
     const {
       campaignId: templateCampaignId,
-      files: {
-        pdfTemplate: { currentVersion: pdfVersionId },
-        testDataCsv: { currentVersion: testDataVersionId } = {},
-      },
+      files,
       language,
       letterType,
       name,
       personalisationParameters,
     } = proofLetterValidationResult.data;
 
+    const pdfVersionId = files.pdfTemplate.currentVersion;
+    const testDataVersionId = files.testDataCsv?.currentVersion;
+
     const sendQueueResult = await this.proofingQueue.send(
       templateId,
       name,