Feature: Google authentication integration

[aimeudoxie]

Description:

This pull request introduces the Google authentication feature in our Medica app, that will allow users to use their Gmail account to login into the App.

Tasks :

• Configured Supabase to handle OAuth authentication with Google.
• Implemented n API calls for the signin process.
• configured Google console

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

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  Hits               ?       13           
  Misses             ?        5           
  Partials           ?        0           

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