Implement comprehensive settings modal with:
- Theme switching (light/dark/auto) with system preference detection
- Language selection for 17 languages with native name sorting
- Developer mode with detailed logging and log viewer
- About section with app info and external links
- Update notification improvements with reduced log spam
Technical improvements:
- Added ThemeContext with persistent state management
- Implemented memory-safe log file reading (5MB limit)
- Fixed all ESLint, TypeScript, and Clippy warnings
- Added JSDoc documentation for public APIs
- Updated README.md and DEVELOPMENT.md with new features
- Integrate tauri-plugin-updater and tauri-plugin-process
- Rewrite UpdateModal with download progress and changelog display
- Add update manifest generation to CI workflow
- Update i18n translations for all 15 languages
- Configure Ed25519 signature verification for secure updates
- Add ErrorDisplay component with QR code for log sharing
- Integrate error display in all modals (BoardModal, ImageModal, DeviceModal, ManufacturerModal)
- Add upload_logs command to paste logs to paste.armbian.com
- Add comprehensive logging across all Rust modules:
- Startup info (version, OS, arch, config URLs)
- Board/image queries with cache status
- Device scanning on all platforms
- Download, flash, and authorization operations
- Custom image handling and decompression
- Fix log level alignment (remove extra space from INFO/WARN)
