[Feature] Add Keyboard Shortcut: Press “P” to Pause/Resume Game

🔍 Have You Searched Existing Issues?

Yes, this is not a duplicate of #87, which adds a clickable pause/resume button. This feature improves gameplay control via keyboard shortcuts.

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💡 Problem Description

During fast-paced gameplay, using the mouse to pause or resume interrupts the player’s flow. Keyboard support for pausing/resuming is expected in modern games and improves accessibility.

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✅ Proposed Solution

Introduce keyboard shortcuts:
- Press **P** to toggle Pause/Resume
- (Optional) Press **Esc** to pause and **R** to restart the match

These shortcuts would work alongside any existing UI buttons without replacing them.

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🔄 Alternatives Considered

Only having mouse buttons for pause/resume, but this limits accessibility and speed for advanced players.

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🖼️ Screenshots or Diagrams (Optional)

None required; functionality is keyboard-based.

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📘 Additional Context

This feature improves game fluidity, accessibility, and UX. I would love to work on this enhancement as part of GSSoC'25. 🎮⌨️

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🙌 Contributor Checklist

[x] I have checked for similar feature requests

[x] I agree to follow this project's Code of Conduct

[x] I am a GSSOC'25 contributor

[x] I want to work on this issue