update SSR rendering of <script> and <style>

src/generators/server-side-rendering/visitors/Element.ts

@@ -60,6 +60,8 @@ export default function visitElement(
 
 	if (node.name === 'textarea' && textareaContents !== undefined) {
 		generator.append(textareaContents);
+	} else if (node.name === 'script' || node.name === 'style') {
+		generator.append(node.data);
 	} else {
 		node.children.forEach((child: Node) => {
 			visit(generator, block, child);