More Features | Better Code | More Stable

• New shortcuts, such as:
  • Ctrl + m: Focusing on the comment box.
  • ;: Go to channel's page.
  • \: Go to video's channel's page.
• More performance and less redundancy.
• Better Code and Object-Oriented Design.
  • Also features immutability — though not complete so far.
• Better and more simplified TDD.
• More complete README.md.