* fix: recursion challenges that abuse global space #43516
* fix challenge phrasing and create separate test
* fix: challenges which pollute/impure functions should not pass
* Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/cash-register.md
allow users to ab(use) global space in cash register
Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
* Update curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/build-a-roman-numeral-converter-project/roman-numeral-converter.md
allow users to abuse global space in roman numeral converter
Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
Co-authored-by: kravmaguy <flex4lease@gmail.com>
Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>