New To Cabal - Cabal repl

file to edit: https://github.com/haskell/cabal-userguide/blob/main/src/new_to_cabal/02_cabal_repl.md

## Brief Summary

In the [content discussion issue](https://github.com/haskell/cabal-userguide/issues/1#issuecomment-861943815) it was mentioned that the easiest way to show a new user how to use cabal is through an interactive environment where they can try things out. This chapter should show the users the basics of the cabal repl (loading a package with `--build-depends`, basic repl like activities). The intent of the chapter should be to show the user how to experiment with cabal. It might also be nice to show how cabal repl integrates into an interactive workflow via something like `ghcid`.

## Prior Art

[Kowainik blog post repl section](https://kowainik.github.io/posts/2018-06-21-haskell-build-tools#cabal-repl)

## Resources

[Prior Cabal User Guide](https://cabal.readthedocs.io/en/3.4/cabal-commands.html#cabal-v2-repl)
[Repl Command Source](https://github.com/haskell/cabal/blob/master/cabal-install/src/Distribution/Client/CmdRepl.hs#L145-L180)