Update index.jsx

Forgot to add `fr` here.

app/assets/javascripts/components/locales/index.jsx

@@ -1,11 +1,13 @@
 import en from './en';
 import de from './de';
 import es from './es';
+import fr from './fr';
 
 const locales = {
   en,
   de,
-  es
+  es,
+  fr
 };
 
 export default function getMessagesForLocale (locale) {