CP Buddy nga sainad2222

Features:
1. Changes status href in probelmset/problem to more useful contest/status
2. Colorizes standings in contests by used programming languages(code: https://codeforces.com/blog/entry/1871)(by yak_ex)
3. Navbar of tasks/problems for codeforces and atcoder (script: https://greasyfork.org/en/scripts/383360-atcoder-problem-navigator)(by yoshrc)
4. Codechef samples copy button(Beta)(by Indian pythonista)(script: https://gist.github.com/nikhilkumarsingh/11de9d7cb1221545a61c9a0294e7c7b7)