Allow to change language

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/i18n/en_US.json

@@ -644,5 +644,6 @@
   "more than 1360 contributors": "more than 1360 contributors",
   "{moderator} has unsuspended profile {profile}": "{moderator} has unsuspended profile {profile}",
   "{moderator} has deleted user {user}": "{moderator} has deleted user {user}",
-  "Change timezone": "Change timezone"
+  "Change timezone": "Change timezone",
+  "Select a language": "Select a language"
 }

js/src/i18n/fr_FR.json

@@ -667,5 +667,6 @@
   "more than 1360 contributors": "plus de 1360 contributeur·ices",
   "{moderator} has unsuspended profile {profile}": "{moderator} a annulé la suspension de {profile}",
   "{moderator} has deleted user {user}": "{moderator} a supprimé l'utilisateur·ice {user}",
-  "Change timezone": "Changer de fuseau horaire"
+  "Change timezone": "Changer de fuseau horaire",
+  "Select a language": "Choisissez une langue"
 }

js/src/i18n/langs.json

@@ -0,0 +1,30 @@
+{
+  "ar": "العربية",
+  "bg": "Български",
+  "be": "Беларуская мова",
+  "br": "Brezhoneg",
+  "ca": "Català",
+  "co": "Corsu",
+  "cs": "čeština",
+  "de": "Deutsch",
+  "en": "English",
+  "eo": "Esperanto",
+  "es": "Español",
+  "fi": "suomi",
+  "fr": "Français",
+  "gl": "Galego",
+  "hu": "Magyar",
+  "it": "Italiano",
+  "ja": "日本語",
+  "nl": "Dutch",
+  "oc": "Occitan",
+  "pl": "Polski",
+  "pt": "Português",
+  "pt_PT": "Português (Portugal)",
+  "ru": "Русский",
+  "sq": "Shqip",
+  "sv": "Svenska",
+  "tr": "Türkçe",
+  "vi": "Tiếng Việt",
+  "zh_Hant_TW": "繁體中文（台灣）"
+}