Implement Login Functionality

[riturajjain2000]

The login functionality is to be added using Firebase Authentication

[prerna2712]

Please assign to me. I plan to use Firebase for authentication.

[riturajjain2000]

we are not accepting PR's as of now!

[prerna2712]

Okay, no issues

[yogitasaini]

Please assign this task to me

[navyasharma0203]

Can I work on this issue??