If a message is sent with only 1 image, the album is not generated (no albumID), so then, in the notification handling code, it didn't use the right ID, because it thought it had to use the AlbumID for the message ID
* fix(image-album): make sure to delete all images part of an album
* test(delete): add test that deletes a message part of an album
* test(delete): add test where the signal to delete images is after
also adds the handling of deleteForMe
* fix(delete): add album deletion handling for deleteForMe