JWT Auth

[v0ldemar01]

User story:
As a user, I want to stay logged in when I revisit the app later so that I don’t have to enter my credentials every time.

Acceptance Criteria:

• If a user successfully signed up and his account is created then a unique JWT Verification token should be generated.
• If the user sign in and the user’s account credentials are verified, then a unique JWT Authorization token should be Implement for the user’s session.
• The token should be passed to the frontend and stored in the local Storage.
• The JWT token should store the user’s id.
• The token should have an expiration time - one day. The token should become invalid and unusable after the expiration time.