Add cache-control header for static assets (#281)

docker/nginx.conf

@@ -38,6 +38,9 @@ http {
 
         # Serves static files from the collected dir
         location /static/ {
+            # Files in static have cache-busting hashes in the name, thus can be cached forever
+            add_header Cache-Control "public, max-age=604800, immutable";
+
             alias /takahe/static-collected/;
             try_files $uri /static//static-real$uri;
         }