Refactor UI components for improved theming, better flight trace logic and weather data (RainViewer radar tiles and METAR reports) (#17)

* Refactor UI components for improved theming and accessibility

- Updated color schemes in `fpv-hud.tsx`, `hero-banner.tsx`, `keyboard-shortcuts-help.tsx`, `mobile-flight-toast.tsx`, `provider-panel.tsx`, `scroll-area.tsx`, and `slider.tsx` to utilize foreground and background variables for better dark mode support.
- Enhanced visual consistency by replacing hardcoded colors with theme variables across various components.
- Adjusted text and background colors for improved readability and accessibility.
- Fixed minor issues with key bindings in `keyboard-shortcuts-help.tsx`.
- Optimized flight data handling in `use-trail-history.ts` and `trail-cleanup.ts` for better performance and accuracy.
- Implemented outlier filtering in trail history to reduce GPS glitches.

* feat: enhance aircraft appearance and flight trail rendering with improved safety checks and visual effects

* feat: implement last flight leg trimming and nearest airport search functionality

* feat: Enhance flight data parsing and handling

- Added optionalFinite helper function to ensure only finite numbers are processed in flight data.
- Extended FlightState type to include avionics data (ias, tas, mach, roll, trackRate, magHeading) and navigation intent (navAltitudeMcp, navAltitudeFms, navHeading, navQnh, navModes).
- Updated parseRawAircraft function to utilize optionalFinite for avionics and navigation data.
- Adjusted removeSpikePoints function to increase cosThreshold from -0.17 to -0.05 for better spike removal.
- Increased MAX_WINDOW in removePathLoops function from 120 to 300 to allow for larger path loops.
- Integrated loop cleaning in stitchHistoricalTrail function to ensure cleaner paths and altitudes.

* feat: add AtcSpectrum component for audio visualization and useAirportBoard hook for flight data management

package.json

@@ -28,7 +28,7 @@
     "lucide-react": "^0.564.0",
     "maplibre-gl": "^5.18.0",
     "motion": "^12.34.0",
-    "next": "16.2.0",
+    "next": "16.2.1",
     "next-themes": "^0.4.6",
     "react": "19.2.4",
     "react-dom": "19.2.4",