Update SCSS to module system (fixes #266)

Change-Id: I2387ef49dadaeac0f62620e0c803df12dad42cf8
diff --git a/Changes b/Changes
index ba3ea51..934ecea 100644
--- a/Changes
+++ b/Changes
@@ -22,6 +22,7 @@
         - Add general proxies support (diewald)
         - Fix guided tour test suite (closes #265; hebasta)
         - Windows is no longer natively supported (diewald)
+        - Upgrade SCSS to module system (fixes #266; diewald)
 
 0.59 2025-03-28
         - Docker only release (diewald)