Exception handling for setup.py

[Sai-ganesh-0004]

Describe the documentation update

• Add details on handling MySQL connection errors.
• Include instructions for masked password input using keyboard.
• Provide guidance on handling errors during database setup/reset.
• Explain arrow key navigation for menu selection.

Why is this needed?

• Helps users troubleshoot connection issues and understand the password input process.
• Reduces confusion around keyboard-based menu navigation.
• Ensures users know the steps for setting up or resetting the database with proper error handling.

Additional context

• Include error message screenshots, relevant code snippets, and examples of handling MySQL connection issues.

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[Sai-ganesh-0004]

Hey Can you assign me so that I can work on this