message: Fix null pointer when tampering with review ID
  (fixes
diff: @@ -16,8 +16,8 @@ module.exports = function productReviews () {
  const id = req.body.id
  const user = security.authenticatedUsers.from(req)
  db.reviews.findOne({ _id: id }).then((review: Review) => {
  - const likedBy = review.likedBy
  - if (!likedBy.includes(user.data.email)) {
  + const likedBy = review?.likedBy
  + if (!likedBy?.includes(user.data.email)) {
  db.reviews.update(
  { _id: id },
  { $inc: { likesCount: 1 } }
  