Fixed status code handling

funkwhale_network/static/main.js

@@ -12,7 +12,7 @@ function submit () {
       var json = JSON.parse(XHR.responseText);
       document.getElementById('form-error').innerHTML = 'Error: ' + json.error
       document.getElementById('form-error').classList.remove('hidden')
-    } else if (XHR.readyState === 4 && (XHR.status === 200 || XHR.status === 204)) {
+    } else if (XHR.readyState === 4 && (XHR.status === 201 || XHR.status === 204)) {
       document.getElementById('form-success').innerHTML = 'Success: domain ' + payload.name + ' was submitted successfully :)'
       document.getElementById('form-success').classList.remove('hidden')
     }