Improve code quality: reorganize imports and reduce duplication

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Summary

This PR makes two focused code quality improvements:

1. Reorganize imports in linkedin.py (PEP 8 compliance)

• Standard library imports (hashlib, math, os, etc.)
• Third-party imports (selenium, webdriver_manager)
• Local imports (config, constants, utils)

This follows PEP 8 conventions and improves code readability.

2. Reduce duplication in utils.py print functions

• Extracted common ANSI color printing logic into a _print_color() helper function
• Refactored prRed(), prGreen(), and prYellow() to use the helper
• Added docstrings to clarify function purposes
• Reduces code duplication while maintaining identical functionality

Benefits

• Cleaner, more maintainable code
• Improved consistency with Python best practices
• Easier to maintain and extend color printing functionality in the future
• No behavioral changes or breaking changes