ISTWCMS-4910: updating theme to use minified css

uw_fdsu_theme_resp.libraries.yml

 global:
   css:
     theme:
-      ../../modules/custom/uw_wcms_gesso/css/styles.css: {}
+      ../../modules/custom/uw_wcms_gesso/css/styles.min.css: {}
       https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.carousel.min.css: {}
       https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.theme.default.min.css: {}
   js: