added udels editor and header

website/src/repl/components/Code.jsx

@@ -0,0 +1,23 @@
+
+
+// type Props = {
+//   containerRef:  React.MutableRefObject<HTMLElement | null>,
+//   editorRef:  React.MutableRefObject<HTMLElement | null>,
+//   init: () => void
+// }
+export function Code(Props) {
+const {editorRef, containerRef, init} = Props;
+
+  return (
+    <section
+      className={'text-gray-100 cursor-text pb-0 overflow-auto grow'}
+      id="code"
+      ref={(el) => {
+        containerRef.current = el;
+        if (!editorRef.current) {
+          init();
+        }
+      }}
+    ></section>
+  );
+}