User Data Export and import (#967)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/967
Co-authored-by: konrad <k@knt.li>
Co-committed-by: konrad <k@knt.li>

pkg/initialize/init.go

@@ -97,6 +97,7 @@ func FullInit() {
 	user.RegisterTokenCleanupCron()
 	user.RegisterDeletionNotificationCron()
 	models.RegisterUserDeletionCron()
+	models.RegisterOldExportCleanupCron()
 
 	// Start processing events
 	go func() {