Improved Question Scraping

[cdkini]

The current method of scraping questions is a bit flawed. Since LeetCode doesn't have a public API, I've copy and pasted the contents of each problem set and then parsed it with Python.

I had initially tried to curl it but it looks like you need authentication to access the pages we need. While the database has all the questions (reducing the need for these scripts), I'd like to improve how this is done to remove unnecessary text files from the codebase.