[Frontend] Log In Flow

[wkim10]

Description

We're starting to branch out from the dashboard! One of the most important features for any web app is user sign-up and authentication. For this ticket, we want you guys to create the frontend for the log in flow. There will be future tickets for "Forgot password" and "Sign up" that will build from the log in page, but let's focus on log in for now. You can find the designs in the "onboarding" tab on Figma underneath "READY FOR DEV".

You don't need to implement the "Forgot password?" or "Sign up here" navigation yet, but we'd like you to implement the showing/hiding password feature as well as having the text fields be highlighted red if the credentials are incorrect (for now if the user clicks "Sign In" just have it display the red border, we can finish the redirect to the user's dashboard after the backend authentication is all finished).

Testing

Not much to test, just make sure that the hiding/showing password and red outline for incorrect credentials is all working!