[ItsDark008]

What changed?

• Add Steam trailers to game details with a custom player, playback controls, and bounded error recovery.
• Render validated Steam images, GIFs, and videos in descriptions; suspend offscreen GIFs and prevent video loop flicker.
• Fix the settings panel flicker while opening and closing.

Validation

• npm run check, npm run lint, and npm run test:feedback pass.
• All 17 steam_details Rust tests pass.
• npm run build succeeds; Vite reports its existing large-chunk warning.
• The full Rust suite was attempted: 865 passed and 99 failed because the sandbox denied filesystem or network operations.
• Trailer playback and custom controls were exercised with PEAK.

UI changes

• Adds a Steam trailer gallery and custom player controls.
• Updates the settings panel transition.