Updated task for the notification UI

[TimovdMerwe-18]

Create a page that will display a logged in user's active notifications. Both parties in need and assisting organisations will be referred to as users from now on to prevent confusion about the names. The notifications could resemble something like this:

You have a new message from user y
You have a new message from user x
User z scheduled a delivery with you

Each active notification should have a button called "viewed" or something else that will remove the notification from the user's active list of notifications. You can decide what information you would like to show(profile pictures, etc) for each notification.

There should also be something on the nav bar that will alert the user if they have a new notification. It could be text "notifications" or an icon that will change colour if there are notifications that have not been "viewed" yet.