Refactor core functionality and improve error handling with version bump to 1.32

[SalvatoreZagaria]

This PR introduces several key improvements to the Toutatis codebase:

🔧 Refactoring & Code Structure

• Refactored main function: Split the original main() function into process_request() for better separation of concerns and improved testability
• Updated entry point logic: Reorganized script execution flow to follow Python best practices
• Removed redundant imports: Cleaned up unused imports (argparse moved to appropriate scope, removed unused region_code_for_number)

🛡️ Enhanced Error Handling

• Improved JSON parsing: Added robust error handling for API responses with proper null checks
• Better user not found scenarios: Enhanced detection and handling of missing user data from Instagram API
• Defensive programming: Added .get() method calls with fallback values to prevent KeyError exceptions
• Safer data access: Wrapped potentially missing dictionary keys with proper defaults

📊 Code Quality Improvements

• More robust parsing logic: Improved handling of user information output with better null safety
• Cleaner output formatting: Enhanced display logic for optional fields like external URLs, emails, and phone numbers
• Better variable naming: Used more descriptive variable names (_id instead of id to avoid shadowing builtin)

📦 Version Management

• Version bump: Updated package version from 1.31 to 1.32 in setup.py

🧪 Maintainability

• Improved function organization: Better separation between CLI handling and core processing logic
• Enhanced readability: More consistent code style and better structured conditional logic

These changes make the codebase more robust, maintainable, and less prone to runtime errors when dealing with varying Instagram API responses.