add name attr

src/client/js/components/InstallerForm.jsx

@@ -62,6 +62,7 @@ class InstallerForm extends React.Component {
                 <i className="icon-bubbles border-0 rounded-0" />
                 <button
                   type="button"
+                  name="registerForm[app:globalLang]"
                   className="btn btn-secondary dropdown-toggle text-right w-100 border-0 shadow-none"
                   id="dropdownLanguage"
                   data-toggle="dropdown"