Project skeleton

[notlfish]

What?

Pull request to set up the project's configuration, markup, and layout styling.

Before merging

The following requirements are to be met:

• [x] Set up the project with webpack
• [x] Add HTML markup:
  • [x] Title
  • [x] Leaderboard ul
    • [x] Hardcode some example scores for visualization
  • [x] New score form
• [x] Add layout styling, with the leaderboard and the form in two different columns