* Add db relationship for comment and notifications
* Use delete instead of destroy
* Add comment's ancestors' data
* Delete descendant notification data appropriately
* Update notifications for comments up the tree as well
* Update descendant notifications appropriately
* Fix apostrophe edge case
* Make ancestor_data method private
* Send new comment notification service + specs
* Call new comment notification service from the model
* Return to non-bang notifications create
* An ActiveJob for the new comment notifications
* Call comments notification ActiveJob from Notification