#13 Show error alert on invalid response

frontend/src/utils.ts

@@ -0,0 +1,11 @@
+const makeRequest = ({ url, method, body }): Promise<Response> => {
+  return fetch(url, {
+    method: method,
+    credentials: "include",
+    body: JSON.stringify(body),
+    headers: { "content-type": "application/json" },
+    mode: "cors",
+  });
+};
+
+export { makeRequest };