[EPIC]: Navigation & Authentication

[JaqiKal]

Objective:

Implement navigation and authentication features to enhance user experience and security.

Connected User Stories:

• [x] US: 14 - As a user I can view a navbar from every page so that I can navigate easily between pages.
• [x] US: 15 - As a user I can navigate through pages quickly so that I can view content seamlessly without page refresh.
• [x] US: 16 - As a user I can create a new account so that I can access all the features for signed up users.
• [x] US: 17 - As a user I can sign in to the app so that I can access functionality for logged in users.
• [x] US: 18 - As a user I can tell if I am logged in or not so that I can log in if I need to.
• [x] US: 19 - As a user I can maintain my logged-in status until I choose to log out so that my user experience is not compromised.
• [x] US: 20 - As a logged out user I can see sign in and sign up options so that I can sign in/sign up.
• [x] US: 21 - As a user I can view user's avatars so that I can easily identify users of the application.