Adds breakpoint debugging output when using Neat 2 grid system

_layout.scss

/*
* Layout debugging display
*/
body {
    &.env--local {
        &:after {
            content: 'default';
            position: fixed;
            bottom: 0;
            right: 0;
            display: block;
            padding: .5em 1em;
            color: white;
            background-color: red;

            @include grid-media($small-screen) {
                content: '$small-screen';
            }

            @include grid-media($medium-screen) {
                content: '$medium-screen';
            }

            @include grid-media($large-screen) {
                content: '$large-screen';
            }

            @include grid-media($xl-screen) {
                content: '$xl-screen';
            }
        }
    }
}