fix: Address critical code review issues

[SQReder]

• Add bounds checking in parseDeviceDesc to prevent panic on invalid input
• Fix typo: colonIdex -> colonIndex
• Add proper error handling throughout, replacing panic-on-error with graceful degradation
• Add defer key.Close() for all registry key operations to prevent resource leaks
• Improve error messages with contextual information
• Add validation for empty user input
• Add helpful message when no configurable devices are found
• Add Windows build constraint
• Initialize go.mod and pin tablewriter to stable v0.0.5
• Add user feedback message after successful toggle operation

These changes improve stability, provide better error messages, and prevent resource leaks while maintaining the original functionality.

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