👷 Changes

Introduced expo library to handle OAUTH connection with google. Currently only tested with ios and not android.

Closes #11

🔦 Testing Instructions

For IOS since I don't have access to a machine that can test the android workflow:

1. npx expo run:ios to create /ios folder.
2. cd ios && pod install. You need to make sure that you have cocoapods in your project
   3 npm run ios

Expected behaviour: once you click sign in and log in with Google, you should see a message appear on the console with your user info related to your gmail account.

✅ Checklist

• I have pulled the most recent changes from the main branch into my feature branch
• My code runs locally after pulling from main
• I have tested any new functionality locally (either manually or with unit tests)
• I have commented parts of my code that may be difficult to understand