🎨 Palette: Enhance GameCard accessibility and fix build error

[Gamepulse]

This PR introduces micro-UX and accessibility improvements to the game library.

💡 What:

• Fixed a TypeScript error in GameScreenshotsCarousel.tsx that prevented production builds.
• Enhanced the 'Quick assign' buttons in GameCard.tsx with proper ARIA labels, semantic button types, and visible focus states.

🎯 Why:

• The build error was blocking CI/CD and production deployments.
• Icon-only buttons lacked context for screen reader users and had no visible focus indicator, making keyboard navigation difficult.

♿ Accessibility:

• Added localized labels to interactive elements.
• Ensured all interactive icons are ignored by screen readers in favor of explicit labels.
• Improved focus visibility for keyboard users.

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PR created automatically by Jules for task 11031181030189362670 started by @Gamepulse

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