Use ecto_sql formatter settings

[zimt28]

Use ecto_sql's formatter config when generating migrations.

I'm using File.cwd!/1 here, as suggested by José:

if the project is being compiled with Mix, "File.cwd!" will always point to the root directory because Mix always runs from root
(https://groups.google.com/g/elixir-lang-talk/c/Ls0eJDdMMW8/m/VLWWAKWPAQAJ)

[zimt28]

I'd also like to keep the resource's attribute order for the migration but haven't figured yet out how the sorting currently works :)

[zachdaniel]

@zimt28 sorting is complicated because there are order dependent operations. So we have a bunch of fall-through cases for determining if one operation has to happen after another. So what you could do is add a case at the bottom of that for the AddAttribute, RemoveAttribute and AlterAttribute to sort them based on their position in the resource's attributes.

[zachdaniel]

More great work :)

🚀 Thank you for your contribution! 🚀