fix(darkmode): check for null (#1531)

Francisco Gama T. R.

2024-12-03 5a5ef670fee5f5f65981801a7ec9c2e563fe99ad

 quartz/styles/variables.scss

@@ -12,7 +12,7 @@

$mobile: "(max-width: #{map-get($breakpoints, mobile)})";
$tablet: "(min-width: #{map-get($breakpoints, mobile)}) and (max-width: #{map-get($breakpoints, desktop)})";
$desktop: "(max-width: #{map-get($breakpoints, desktop)})";
$desktop: "(min-width: #{map-get($breakpoints, desktop)})";

$pageWidth: #{map-get($breakpoints, mobile)};
$sidePanelWidth: 320px; //380px;