Warp v1.2.1

UI/UX polish

• Focus mode — while a transfer runs, the progress card now replaces the setup form instead of stacking below it. No more clipped file lists or overlapping buttons on small windows.
• Live parallel counters — the workers chip now shows real-time state: "⚡ N copying in parallel · X/Y folders" updates as shards start and finish (previously could sit at "0/41" for most of a job).
• Pause feedback everywhere — sequential transfers show pause state too, and the drain tail reads "finishing last folder".