v0.2.0 minor update

[Mostlime12195]

Version 0.2.0 is here!

With it comes many things, like:

• Better functionality for contributors
• Many of the webpages now have better wording
• Code polished
• Better README.md
• New CodeFactor, allowing us to review our code quality (our rank is visible in README.md)
• Switched out SayoBot for Mino, providing many features, such as:
  • Better search functionality (less beatmaps provided, but far better quality/related to keywords)
  • Servers around the world, providing for less ping/faster downloads (SayoBot is solely located in China)
  • Better sorting, allowing for randomised beatmaps & far better "popular" beatmaps.
  • A new "random beatmaps" section of index.html, picking beatmaps randomly every time the page is opened.

This new update has many new things, so cherish it. https://webosu-2.github.io/

Also, much thanks to https://webosu.online/ for providing their source code, their code has tremendously helped me transition from SayoBot to Mino, their own API.