Email notification of draft status changes doesn't make it clear whether the MR going into draft or out of draft

When an MR is changed to or from draft, an email notification is created, such as:

It's not clear from this notification whether the MR is going into draft or out of draft. This feels wrong since the actions that a reviewer should take for an MR going out of draft are very different from the actions they would take for an MR going into draft.

The email notification should make this clear.

cc @phikai