SF-3771 Record USFM downloads in the event log (#3783)

Author: pmachapman

src/SIL.XForge.Scripture/ClientApp/src/app/event-metrics/event-metrics-log.component.ts

@@ -188,9 +188,11 @@ export class EventMetricsLogComponent extends DataLoadingComponent implements On
     //       I have not localized at this time because these strings are likely to change based on feedback.
     //       When this feature is mature, these should be localized to help Project Administrators.
     const eventTypeMap: { [key: string]: string } = {
+      ApplyPreTranslationToProjectAsync: 'Import draft into a project',
       BuildProjectAsync: 'Start draft generation on Serval',
       CancelPreTranslationBuildAsync: 'Cancel draft generation',
       CancelSyncAsync: 'Cancel synchronization with Paratext',
+      GetPreTranslationUsfmAsync: 'Download draft as USFM',
       RetrievePreTranslationStatusAsync: 'Save drafts to Scripture Forge',
       SetDraftAppliedAsync: "Updated the chapter's draft applied status",
       SetIsValidAsync: 'Marked chapter as valid/invalid',

src/SIL.XForge.Scripture/Services/IMachineApiService.cs

@@ -120,6 +120,8 @@ Task<IReadOnlyList<DocumentRevision>> GetPreTranslationRevisionsAsync(
         bool isServalAdmin,
         CancellationToken cancellationToken
     );
+
+    [LogEventMetric(EventScope.Drafting, nameof(curUserId), nameof(sfProjectId), captureReturnValue: false)]
     Task<string> GetPreTranslationUsfmAsync(
         string curUserId,
         string sfProjectId,