[Feature Request] Extend support for other coding websites

[contactvaibhavi]

coding websites to target:

1. Interviewbit - popular for DSA Interview prep
2. Geeksforgeeks
3. Hackerearth
4. Hackerrank
5. Codechef
6. Codeforces

I'm interested to pick this!

[contactvaibhavi]

@joshcai I'm interested to pick this!