fix(curriculum): rework Project Euler 85

[gikf]

• Reworks challenge to use argument in function call.
• Adds solution.
• Related to Rework coding interview prep challenges #40896.
• Tested on local fork.

Checklist:

• I have read freeCodeCamp's contribution guidelines.
• My pull request has a descriptive title (not a vague title like Update index.md)
• My pull request targets the main branch of freeCodeCamp.
• All the files I changed are in the same world language, for example: only English changes, or only Chinese changes, etc.

[gitpod-io]

[moT01]

I added this solution to the forum guide article