Today & Live Tabs + Sidebar Visual Refresh

The terminal sidebar now has dedicated Today and Live tabs. Today pulls out only markets scheduled for today, keeping same-day matchups and series easier to scan without digging through the full trending list. Live focuses on in-progress events with league banners, pulsing live status, score badges, outcome prices, bid/ask + spread context, and 24h sparkline visuals. The whole panel got a visual refresh too, with color-coded tabs and a live counter that make active games much easier to spot.