v0.3.4 - Accessibility and Results Table UX Polish

• Refined the solver UI layout and motion with subtle entry animations, plus a reduced-motion mode for accessibility preferences.
• Improved keyboard and screen-reader accessibility with a skip link, stronger visible focus styles, and better live status announcements during/after solver runs.
• Polished the results table interaction and readability, including tighter column spacing so key fields like Player 1 - Payoff are visible in more viewports without horizontal scrolling.