Log the body of the request when the first step of a login fails

lib/login.js

@@ -27,10 +27,11 @@ async function getVerificationData(url, email) {
     body: data
   })
 
-
   const body = await res.json()
   if (res.status !== 200) {
-    throw new Error(`Verification error: ${res.status} – ${body}`)
+    throw new Error(
+      `Verification error: ${res.status} – ${JSON.stringify(body)}`
+    )
   }
   return body
 }