Bug: Path separator is different for mac and windows

[lukeecart]

Description: In the Codecademy Docs Content - adheres to content file structure test the split doesn't correctly split for Window users. On Mac the / is the separator whereas on windows its \\. So when running the tests on windows the test fails and doesn't split up 'nodePath' variable correctly.

Affected file: https://github.com/Codecademy/docs/blob/main/content.test.ts

Expected: line 53: const nodeName = nodePath.split('/').slice(-1)[0]; to be 'c'

Actual: line 53: const nodeName = nodePath.split('/').slice(-1)[0]; is 'C:\\Users\\USERNAME\\Documents\\codecademydocs\\content\\c'

Suggested change: instead of splitting using /, use path.sep (see https://nodejs.org/api/path.html#path_path_sep)

For example line 53 becomes:
const nodeName = nodePath.split(path.sep).slice(-1)[0]; this will fixfor windows or mac users when running test locally

@sonnynomnom