Add comprehensive Settings module for managing system dependencies and application preferences:
- Created settings_module.go with dependency checking system
- Maps modules to required dependencies (FFmpeg, DVDAuthor, xorriso, Real-ESRGAN, Whisper)
- Displays dependency status with visual indicators (green/red)
- Shows platform-specific installation commands
- Auto-enables/disables modules based on installed dependencies
- Added Settings tile to main menu (always enabled)
- Integrated module availability checking via isModuleAvailable()
This provides users a centralized location to check and install missing dependencies, addressing the requirement to disable modules when dependencies aren't available.
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
