Feature: Notifications Implementation

[Latiah]

What does this PR do?

This PR includes notification implementation where a user will be able to view notifications when an event is done like creating an appointment or cancelling an appointment

Description of Task to be completed?

Fetching data from the database

How should this be manually tested?

Login the app and on the home screen click on the notification icon and from there you will find the notifications

Any background context you want to provide?

What are the relevant pivotal tracker/Trello stories?
N/A

Screenshots (if appropriate)

Questions:
N/A

[Emmyfrank]

Work on following comment

I think it might be better if if you work on deleting all notifications and singe notification because sometimes a patient will need to delete them

you can also update your PR

[Emmyfrank]

Now i can clear all notfications or single notfication , thanks for working on my comments

[justinmihigo]

Notifications are coming but if you can manage so that you can use system notifications so that a user can know immediately. but otherwise great job on this

[Latiah]

Notifications are coming but if you can manage so that you can use system notifications so that a user can know immediately. but otherwise great job on this

thanks, @justinmihigo I am on it