Christoffer Martinsson 46cc813a68 Implement Tab key host switching functionality
- Add KeyCode::Tab support to main dashboard event loop
- Add Tab key handling to TuiApp handle_input method
- Tab key now cycles to next host using existing navigate_host logic
- Host switching infrastructure was already implemented, just needed Tab key support
- Current host displayed in bold in title bar, other hosts shown normally
- Metrics filtered by selected host, full navigation working
2025-10-18 19:26:58 +02:00
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