fix: refactor whitespace check in createWorklet function

[jdnichollsc]

Extracted the lambda function used in the std::all_of call into a separate named function.

Closes #144

[spsaucier]

Fixes the issue for me.

[jdnichollsc]

let me know what you think folks, I'm just learning this package! 🫡

[adonaiKasawa]

I resolved the error with the following code:
you must first include the following headers

then look for the line where we find
bool isCodeEmpty = std::all_of(_code.begin(), _code.end(), std::isspace);

replace you with
bool isCodeEmpty = std::all_of(_code.begin(), _code.end(), [](unsigned char c) { return std::isspace(c); });

[mrousavy]

looks good, nice work!