Volunteer Notification Frontend

## Context

- Complete the volunteer notification frontend as seen [here](https://www.figma.com/design/Qd2Re6coyNyGN8QmsRpVVs/VolunTrack-2.0-Fall-25?node-id=15049-514&p=f&t=hWkkqiyPK55Y2ABO-0)
- The backend _should_ be done in theory (it's not actually working compeltely), but you should be able to plug into those functions to have everything work from the frontend
- For testing, still feel free to just use dummy data, since the notifications might not be totally working
- With that being said, the individual "one-time" notifications should be working, so test with that if possible to make sure it shows up properly on the frontend when a notification comes through

- The idea is that an admin sends notifications, either as an email or through VolunTrack. If it is through VolunTrack, then it shows up for the volunteer (when they log in) under the bell

- Reach out with questions

## Acceptance Criteria

- [ ] Finish the above feature according to design specs, account for edge cases