Implement the authentication for frontend

[roshanlam]

• Implement the google auth and make it look exactly like the figma design.
• Implement the github auth and make it it look exactly like the figma design.

Recommendation:

• Improve the button component and use it for the auth buttons.
• Make the button such that you can feed it hex color for background and text
• Make the button such that you can add onclick methods.