Fix Foundation Sites util import path for Sass compilation

- Use absolute path to Foundation's util/util from node_modules
- Resolves the 'Can't find stylesheet to import' error
- main.css now generates successfully (312KB)
- Critical fix for CSS deployment issue on GitHub Actions
- Removes the conflict between local and Foundation util paths

Author: Dale Kunce

app/assets/styles/_settings.scss

@@ -64,7 +64,7 @@
 //  55. Top Bar
 //  56. Xy Grid
 
-@import 'util/util';
+@import '../../../node_modules/foundation-sites/scss/util/util';
 
 // 1. Global
 // ---------