feat: added login functionality

[Ayoazeez26]

📌 Pull Request Title

📋 Description

Provide a brief summary of the changes introduced in this PR.
Added API integration for login

🛠 Changes Implemented

• List key changes made in this PR.

✅ How to Test

1. Setup: Steps to set up the environment.
2. Run Tests: Instructions to verify the changes.
3. Expected Output: What should happen if the changes work correctly.

🔍 Screenshots (if applicable)

Attach screenshots or GIFs to show visual changes.

🚀 Checklist

• Code follows project style guidelines.
• Changes are tested and verified.

🔗 Related Issues

• Closes Redesign Sign-In Page and Implement Login Flow #48

[portableDD]

LGTM, good job