v0.4.1

Fixed sass console warnings about / being deprecated (#4). This was done by using list.slash in the aspect ratio variables.

$ratio-square: 1;
$ratio-landscape: list.slash(4,3);
$ratio-portrait: list.slash(3,4);
$ratio-widescreen: list.slash(16,9);
$ratio-ultrawide: list.slash(18,5);
$ratio-golden: list.slash(1.6180,1);

See details: https://sass-lang.com/documentation/breaking-changes/slash-div