Story: As a user, I want to be able to sign in using my username and password.
Acceptance criteria: The user successfully signs in after inputting their username and password. If an incorrect combination is entered, they will be notified and their sign in will fail.
Story: As a user, I want to be able to sign in using my username and password.
Acceptance criteria: The user successfully signs in after inputting their username and password. If an incorrect combination is entered, they will be notified and their sign in will fail.