Add workflow test

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

.github/workflows/node.yml

@@ -42,6 +42,9 @@ jobs:
           npm ci
           npm run build --if-present
 
+      - name: Build css
+        run: npm run sass
+
       - name: Build icons css
         run: npm run sass:icons