Finished file name tracking

utils/analytics.go

@@ -49,3 +49,12 @@ func SendAnalyticsEvent(eventType, pathname string) error {
 		Pathname: pathname,
 	})
 }
+
+func SendCustomEvent(eventName, pathname, properties string) error {
+	return trackEvent(TrackingEvent{
+		Type:       "custom_event",
+		Pathname:   pathname,
+		EventName:  eventName,
+		Properties: properties,
+	})
+}