🎨 Palette: UX and Accessibility Improvements

[Gamepulse]

I have implemented a series of micro-UX and accessibility improvements to the Pascal Game Manager.

💡 What

• Accessibility Overhaul: Replaced non-semantic <span> elements used as buttons in GameCard with proper <button type="button"> elements. Added descriptive aria-label and title attributes to icon-only buttons and interactive tags.
• Clear Rating Feature: Added a "Clear Rating" button next to the personal rating slider in GameDetailHeader, allowing users to unset their rating.
• Visual Polish: Added focus-visible ring styles to all interactive elements to ensure they are easily navigable via keyboard.
• Cleanup: Fixed a TypeScript error in GameScreenshotsCarousel by removing an unused state variable.
• i18n: Added clearRating and quickAssignPlatform translation keys for both English and French.

🎯 Why

• Using semantic buttons ensures native keyboard support and better screen reader compatibility.
• Range inputs cannot be reset to a null state once moved; a dedicated "Clear" button solves this UX gap.
• Focus indicators are essential for users who navigate via keyboard.

♿ Accessibility

• Improved ARIA compliance by using proper roles and labels.
• Hidden decorative emojis from screen readers using aria-hidden="true".
• Ensured interactive elements have a minimum focus-visible state.

Verified with pnpm build, pnpm test, and manual visual verification via Playwright.

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PR created automatically by Jules for task 11363975026776066711 started by @Gamepulse

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