Create a small game

[feason]

Description

• This PR introduces a new, standalone classic Snake game.
• Code Changes:
  • index.html: Main HTML structure for the game.
  • style.css: Styling for the game's UI and elements.
  • script.js: Core game logic, including snake movement, food generation, collision detection, scoring, and controls.
  • README.md: Updated to describe the Snake game, its features, and how to run it.
• Purpose: Fulfills the user's request to create a small game.

Screenshots/videos:

(N/A - no visual changes to the existing web UI, this is a new, separate game)

Checklist:

• I have read contributing wiki page
• I have performed a self-review of my own code
• My code follows the style guidelines
• My code passes tests

---

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}