Refactor to enhance code quality

[thatvideoshopguy]

Description

Addressing multiple concerns, such as consistent naming conventions, splitting long functions, adding type hints, improving variable names, breaking down large functions, proper code formatting, and using f-strings can greatly enhance the code quality.

Example Improvements

In the extract() function, rename spattern and tpattern to source_pattern and target_pattern for better readability. We could refactor the convert() function to separate the handling of part matches into a dedicated function.

Could I be assigned to this issue to tackle these improvements comprehensively?

[B-R-P]

Did you fully understand the codebase?

[thatvideoshopguy]

Hi @B-R-P, thanks for the response. I probably don't understand the codebase as in-depth as yourself and the other contributors. What I was really getting at with this issue is suggesting that a modular approach to the functions and classes in separate files would make it easier to maintain and contribute too. Or did you want to keep a single LangTrans.py file?

[B-R-P]

I want it as a single file for now. I am assigning you (@thatvideoshopguy) to improve the code, as you mentioned above.

[B-R-P]

Use docs to better understand the code and feel free to ask me if you have any questions.