New structure and more tabbing

components/REPL/index.tsx

@@ -0,0 +1,9 @@
+import { useCallback, useState } from "react";
+import REPLInput from "./REPLInput";
+
+const REPL = () => {
+    const [history, manipulateHistory] = useState([]);
+    return <REPLInput historyCallback={manipulateHistory} />;
+};
+
+export default REPL;