Add the ability to sort side-effect imports

[lfloyd117]

Is your feature request related to a problem?
Yes, we import our partial stylesheets in the JS/TS as recommended by Embroider to leverage webpack's code splitting on our stylesheets. For this in components we use import './_style.scss';. We would really like to sort these to have consistent style/order across all our files.

Describe the solution you'd like
An option to enable sorting of side-effect imports or at least specific patterns of side-effect imports. As they are currently not sorted as per the docs.