Email Notifications on Sub Items need to include the Name of the parent item

When there is an update on a subitem that include an @mention, that user gets an email. This probably applies in other instances as well. That email shows the name of the subitem, but the user doesn’t know what parent item this is for. It is common for us to use similarly name subitems for tasks on multiple main items, so this can be very frustrating to our users. It would be helpful to the email specify “Subitem X on item Y” to provide the context for the update. Simple, but helpful.