fix(llc, ui): fix failing tests

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

packages/stream_chat/lib/src/core/models/message.dart

@@ -220,7 +220,7 @@ class Message extends Equatable {
   final DateTime? deletedAt;
 
   /// A Map of translations.
-  @JsonKey(includeIfNull: false, toJson: Serializer.readOnly)
+  @JsonKey(includeIfNull: false)
   final Map<String, String>? i18n;
 
   /// Known top level fields.

packages/stream_chat/lib/src/core/models/message.g.dart

@@ -110,6 +110,6 @@ Map<String, dynamic> _$MessageToJson(Message instance) {
   val['pinned_by'] = readonly(instance.pinnedBy);
   val['extra_data'] = instance.extraData;
   writeNotNull('deleted_at', readonly(instance.deletedAt));
-  writeNotNull('i18n', readonly(instance.i18n));
+  writeNotNull('i18n', instance.i18n);
   return val;
 }

packages/stream_chat/lib/src/core/models/user.dart

@@ -87,7 +87,11 @@ class User extends Equatable {
   /// The language this user prefers.
   ///
   /// Defaults to 'en'.
-  @JsonKey(defaultValue: 'en')
+  @JsonKey(
+    includeIfNull: false,
+    toJson: Serializer.readOnly,
+    defaultValue: 'en',
+  )
   final String language;
 
   /// Shortcut for user name

packages/stream_chat/lib/src/core/models/user.g.dart

@@ -48,6 +48,6 @@ Map<String, dynamic> _$UserToJson(User instance) {
   writeNotNull('online', readonly(instance.online));
   writeNotNull('banned', readonly(instance.banned));
   val['extra_data'] = instance.extraData;
-  val['language'] = instance.language;
+  writeNotNull('language', readonly(instance.language));
   return val;
 }