Improve Pong Game with Multiplayer, AI, and Responsiveness

[KartikJPatil]

The current Pong game implementation is very simple, outdated, and not responsive.
I propose replacing it with an updated version built with React + Vite that includes:

1. Multiplayer support (online and local two-player mode).
2. Responsive UI for different devices.
3. Chat system during multiplayer matches.
4. Option to play with AI and adjust AI difficulty level.
5. Two players can play on one device.

This enhancement will modernize the Pong game, make it engaging, and align it better with the other projects in the repo.

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