Improve LinkedIn auth and solve bug

[Pratikdate]

Describe the bug
Implement LinkedIn auth

To Reproduce
Steps to reproduce the behavior:

1. Go to profile
2. Click on linkedin
3. See error

Expected behavior
fast and easy user-friendly experience.

[anglerfishlyy]

could you assign me this issue? i would like to see it.

[anvithagowda098]

I am a GSSoC '24 contributor.
Can you please assign this to me.

[heysagnik]

@anglerfishlyy what's your progress? And if you are facing any issues reach out to us .