disable browser cache by nginx config

alfa-client/libs/design-system/nginx.conf

@@ -34,6 +34,9 @@ http {
         location / {
             root   /usr/share/nginx/html/design-system;
             index  index.html index.htm;
+
+            add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0";
+            add_header Expires "0";
         }