feat(persistence): add support for message.i18n

Signed-off-by: xsahil03x <[email protected]>

packages/stream_chat_persistence/lib/src/entity/messages.dart

@@ -80,6 +80,9 @@ class Messages extends Table {
   TextColumn get channelCid => text().nullable().customConstraint(
       'NULLABLE REFERENCES channels(cid) ON DELETE CASCADE')();
 
+  /// A Map of [messageText] translations.
+  TextColumn get i18n => text().nullable().map(MapConverter<String>())();
+
   /// Message custom extraData
   TextColumn get extraData => text().nullable().map(MapConverter<Object?>())();
 

packages/stream_chat_persistence/lib/src/entity/users.dart

@@ -11,6 +11,9 @@ class Users extends Table {
   /// User role
   TextColumn get role => text().nullable()();
 
+  /// The language this user prefers.
+  TextColumn get language => text().withDefault(const Constant('en'))();
+
   /// Date of user creation
   DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();