Fix language change

- Load the language files correctly when language is changed
- Save user language in localstorage so that we can have it even if disconnected (but still load it from user settings eventually since
user might be on a different device)
- Load all locales from Cldr with Gettext
- Fix pt-PT -> pt-BR
- Clean some obsolete config.exs comments

Later changes will allow to set the language without an account
https://framagit.org/framasoft/mobilizon/-/issues/375

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

js/src/types/current-user.model.ts

@@ -16,6 +16,21 @@ export interface ICurrentUser {
   defaultActor?: IPerson;
 }
 
+export enum INotificationPendingParticipationEnum {
+  NONE = "NONE",
+  DIRECT = "DIRECT",
+  ONE_DAY = "ONE_DAY",
+  ONE_HOUR = "ONE_HOUR",
+}
+
+export interface IUserSettings {
+  timezone: string;
+  notificationOnDay: boolean;
+  notificationEachWeek: boolean;
+  notificationBeforeEvent: boolean;
+  notificationPendingParticipation: INotificationPendingParticipationEnum;
+}
+
 export interface IUser extends ICurrentUser {
   confirmedAt: Date;
   confirmationSendAt: Date;
@@ -42,18 +57,3 @@ export enum IAuthProvider {
   GITLAB = "gitlab",
   TWITTER = "twitter",
 }
-
-export enum INotificationPendingParticipationEnum {
-  NONE = "NONE",
-  DIRECT = "DIRECT",
-  ONE_DAY = "ONE_DAY",
-  ONE_HOUR = "ONE_HOUR",
-}
-
-export interface IUserSettings {
-  timezone: string;
-  notificationOnDay: boolean;
-  notificationEachWeek: boolean;
-  notificationBeforeEvent: boolean;
-  notificationPendingParticipation: INotificationPendingParticipationEnum;
-}