APIs (#3)

* Initial RESTful API

* RESTful API tests

* Scrapping error handling refactored

* Initial GraphQL API

* GraphQL API tests

pages/404.tsx

@@ -2,7 +2,7 @@ import { FC } from "react";
 import { CustomError } from "../components";
 
 const My404: FC = () => (
-    <CustomError statusCode={404} />
+    <CustomError statusCode={404} statusText={"This page could not be found"} />
 );
 
 export default My404;