Sign In Screen Layout Bug

### Step 1: Describe your environment

* Android device: Pixel 9
* Android OS version: Latest OS (API 36)
* Google Play Services version: Unsure
* Firebase/Play Services SDK version: Unsure

### Step 2: Describe the problem:
On the Login / Signup Screen, the fields for email and password are hidden behind the top navigation bar.

#### Steps to reproduce:

1. Download the Quick Start Code for Friendly Eats
2. Follow the Code Lab Step 1 - 5
3. You will get the to the login screen.

#### Observed Results:

* I use the app on the emulator, so I was able to input the values pressing the TAB key on my Macbook, and I was able to create an account and login. However, if I were running on my phone, I wouldn't be able to do that.

#### Expected Results:

* I expected that all the fields would show up properly.

Reproduce the Friendly Eats sign-in screen by following Code Lab steps 1–5 on the specified Android environment. Inspect the screen layout and verify that the email and password fields are fully visible rather than hidden behind the top navigation bar.

Written by the indexing model from the issue text.