feat(server): wait five minutes before sending email on new album item (#12223)

Album update jobs will now wait five minutes to send. If a new image is added while that job is pending, the old job will be cancelled, and a new one will be enqueued for a minute.

This is to prevent a flood of notifications by dragging in images directly to the album, which adds them to the album one at a time.

Album updates now include a list of users to email, which is generally everybody except the updater. If somebody else updates the album within that minute, both people will get an album update email in a minute, as they both added images and the other should be notified.

server/src/services/album.service.ts

@@ -174,7 +174,13 @@ export class AlbumService extends BaseService {
         albumThumbnailAssetId: album.albumThumbnailAssetId ?? firstNewAssetId,
       });
 
-      await this.eventRepository.emit('album.update', { id, updatedBy: auth.user.id });
+      const allUsersExceptUs = [...album.albumUsers.map(({ user }) => user.id), album.owner.id].filter(
+        (userId) => userId !== auth.user.id,
+      );
+
+      if (allUsersExceptUs.length > 0) {
+        await this.eventRepository.emit('album.update', { id, recipientIds: allUsersExceptUs });
+      }
     }
 
     return results;