👮‍♀️**Add Password Auth SignIn Flow** 👮

[boovius]

Scenario: Happy Path

Given I am a User,
And my name is "Bob Mercedes",
And I have previously created an account,
When I advance past the launch screen,
Then I see a SignIn screen with an TextField for email and TextField for password (this begins the SignInFlow for the app)
When I fill in an email of an already existing account,
And I fill in the correct associated password,
Then I am logged in to the app, brought to the CreationsList screen,
And I am presented with an alert that says "Welcome back Bob Mercedes" (this seems like the simplest way to provide demonstrable feedback to the user that they have actually logged in with the correct account)