Rework workshops using replit for coding

As replit has now limited usage without core, we need to find an alternative to replit to use in workshops, like how codespaces is being used in the personal website workshop.
So essentially the workshops need to be reworked to use a replit alternative

Start by reviewing the workshops that currently use Replit and compare them with the personal website workshop's Codespaces setup. Identify a supported alternative and update the affected workshop material; done means the workshops no longer depend on limited Replit usage and can be followed with the replacement.

Written by the indexing model from the issue text.