feat(user-manager): send manuscript email to existing author

packages/component-user-manager/src/routes/fragmentsUsers/post.js

@@ -92,6 +92,15 @@ module.exports = models => async (req, res) => {
       collection.save()
     }
 
+    notifications.sendNotifications({
+      user,
+      baseUrl,
+      fragment,
+      collection,
+      UserModel: models.User,
+      isSubmitting,
+    })
+
     return res.status(200).json({
       ...pick(user, authorKeys),
       isSubmitting,