Display control chars and invisible Unicode explicitly (#220)

[AJTimePyro]

This pull request improves how argumentToString converts strings by making escaping safer and more predictable, especially for edge cases that were previously mishandled. Inspired from issue #220

What changed:

• Better Escaping: Now identifies and escapes control characters, zero-width spaces, and NBSP using a new regex mapping.
• Backslash Handling: All backslashes are now correctly escaped.
• Multi-line Support: Refined how multi-line strings are formatted for better readability.
• New Dependency: Added import re for the character detection logic.

[Jakeroid]

@AJTimePyro

Thank you! That looks promising! I'll take a look.

[AJTimePyro]

cool, let me know if there's any issue or something,... i will change accordingly

[Jakeroid]

@AJTimePyro I think it would be nice to have test covered this one. Do you think you could do that?

Keep in mind, that recently I merged tests refactoring (in PEP8 style).

[AJTimePyro]

I can try to create some test

[AJTimePyro]

@Jakeroid I have added some tests, you can check them out.

[Jakeroid]

@AJTimePyro Tests are failed. Could you take a look please?

[Jakeroid]

@AJTimePyro Oh, I know why. Because of recent refactoring which was did here: #223

Do you think you could fix issues by keeping refactoring in place?

[AJTimePyro]

oh okay i will fix it soon

[Jakeroid]

@AJTimePyro awesome

thank you!

[Jakeroid]

@AJTimePyro How is it going?