code refactored with some func variable name update

[R1j1t]

Description

• Issue this PR address? Improve code readability, improve func/var naming conventions inline with https://github.com/R1j1t/contextualSpellCheck/issues/25
• Any other information you think is relevant:

1. Planned naming convention updates:

• [ ] function name
• [ ] variable name
• [ ] spacy extentions name

2. Code Refactor:

• [ ] Split functions to handle small tasks
• [ ] Update in-code documentation
• [ ] Remove dead code
• [ ] remove useless comments
• [ ] Divide main class into helper code ?
• [ ] Incorporate pylint suggestions
• [ ] pass all test (obviously 💯 )
• [ ] Update user documentation

Checklist

• [x] Added and/or updated the test (not required for documentation changes)
• [ ] My changes don't require a change to the documentation, or if they do, I've added all required information

[stale[bot]]

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