veb: fix static handler

Author: medvednikov

vlib/veb/veb.v

@@ -615,7 +615,7 @@ fn route_matches(url_words []string, route_words []string) ?[]string {
 fn serve_if_static[X](app StaticHandler, mut user_context X, url urllib.URL, host string) bool {
 	// TODO: handle url parameters properly - for now, ignore them
 	mut asked_path := url.path
-	static_handler := app_static_handler(app)
+	static_handler := app
 
 	// Content negotiation for markdown files (if enabled)
 	if static_handler.enable_markdown_negotiation {