Run JuliaFormatter for style in MOLE.jl and apply style changes

[valeriabarra]

PR #392 adds a workflow for a GitHub Action.

I would like to now run the JuliaFormatter locally, and push all the necessary changes to make the GHA happy/pass.

I will also add documentation on how to run the formatter locally in the MOLE.jl Julia docs.

[valeriabarra]

Documentation will include the following instructions:

To test the JuliaFormatter locally, please make sure to have a working julia installation and add the JuliaFormatter package to your either global or local environment. At a global, system level, this would be:

julia -e 'using Pkg; Pkg.add("JuliaFormatter")'

Now that your environment has the JuliaFormatter package do the following to apply format style changes to the MOLE.jl directory:

1. From the mole/julia/MOLE.jl directory, run

julia -e 'using JuliaFormatter; format(".", overwrite=true, verbose=true) || error("Formatting issues detected")'

Review the generated style changes applied by the formatter with

git status

and

git diff