[aaronashby]

ℹ️ Issue

Closes #189

📝 Description

I created a backend route to delete a notification with a given ID from the notifications table.

Changes made to the code:

1. Created deleteNotification() method innotification.controller.ts, which can be accessed via the URL, notifications/:notificationId that delegates to the corresponding method in notification.service.ts
2. Added deleteNotification() method in service that takes in the notificationId from the controller, and deletes the notification with that id from the database
3. Created unit tests to test a successful deletion and failures to delete in the following cases

• If the environment variable for the notifications table name is not set
• If the notification with the given id does not exist

✔️ Verification

I added tests for the above cases

🏕️ (Optional) Future Work / Notes

None

[prooflesben]

Good stuff future tech lead