Improve Sign Up flow

When the user signs up for an account. The account is created in Appwrite but the user is still not signed in to the app. He is instead redirected to the sign in page. And only after he signs in he is actually logged in to the app.

This includes an extra step when onboarding the user.

Proposed Fix:
When the user signs up he is logged in to the app and is redirected to home screen.

https://github.com/user-attachments/assets/9440ea59-74b5-49e7-8697-7eb3c9fed5f6