Add complete CyberViewer wiki Comprehensive documentation covering all features: - Home (navigation hub) - Viewing (open, zoom, pan, fullscreen, GIF) - Editing (rotate, crop, resize, color adjustments) - Slideshow (timed presentation, loop mode) - File Operations (save, copy, trash, export, print) - Settings (all configurable options) - Keyboard Shortcuts (complete reference) - Installation & Setup (install, build, auto-start) - FAQ (troubleshooting)