Update translation files

Updated by "Cleanup translation files" hook in Weblate.

Translation: Mobilizon/Frontend
Translate-URL: https://weblate.framasoft.org/projects/mobilizon/frontend/

js/src/i18n/langs.json

@@ -1,14 +1,8 @@
 {
-  "bn": "বাংলা",
   "cs": "čeština",
-  "de": "Deutsch",
   "es": "Español",
-  "fi": "suomi",
   "gd": "Gàidhlig",
-  "hu": "Magyar",
   "it": "Italiano",
-  "nn": "Nynorsk",
   "pl": "Polski",
-  "ru": "Русский",
   "sv": "Svenska"
 }