Improvement: Make the CLI work on windows

[ShreyPurohit]

Issue Link: Improvement: Make the CLI work on windows

Key changes:

• Added _normalize_path function to handle platform-specific path normalization
• Added _normalize_path_str function to ensure consistent forward slash separators in output
• Added _get_encoding_list function for cross-platform file encoding detection
• Enhanced Windows symlink handling in _is_safe_symlink
• Updated file content string generation to use normalized paths
• Improved file reading with multiple encoding attempts for better cross-platform compatibility
• Fixed path separator inconsistencies in test outputs

** Additionally, this project would not run on Windows Systems due to setup.py handling Readme File.
Fixed the above as well

[cyclotruc]

@ShreyPurohit Thanks a lot for your work on this! very happy that we're now officially supporting Windows thanks to you