feat(persistence): add support for message.i18n

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

packages/stream_chat_persistence/test/src/dao/message_dao_test.dart

@@ -35,10 +35,15 @@ void main() {
         replyCount: index,
         updatedAt: DateTime.now(),
         extraData: const {'extra_test_field': 'extraTestData'},
-        text: 'Dummy text #$index',
+        text: 'Hello #$index',
         pinned: math.Random().nextBool(),
         pinnedAt: DateTime.now(),
         pinnedBy: User(id: 'testUserId$index'),
+        i18n: {
+          'en_text': 'Hello #$index',
+          'hi_text': 'नमस्ते #$index',
+          'language': 'en',
+        },
       ),
     );
     final quotedMessages = List.generate(
@@ -52,11 +57,16 @@ void main() {
         replyCount: index,
         updatedAt: DateTime.now(),
         extraData: const {'extra_test_field': 'extraTestData'},
-        text: 'Dummy text #$index',
+        text: 'Hello #$index',
         quotedMessageId: messages[index].id,
         pinned: math.Random().nextBool(),
         pinnedAt: DateTime.now(),
         pinnedBy: User(id: 'testUserId$index'),
+        i18n: {
+          'en_text': 'Hello #$index',
+          'hi_text': 'नमस्ते #$index',
+          'language': 'en',
+        },
       ),
     );
     final threadMessages = List.generate(
@@ -72,10 +82,15 @@ void main() {
         replyCount: index,
         updatedAt: DateTime.now(),
         extraData: const {'extra_test_field': 'extraTestData'},
-        text: 'Dummy text #$index',
+        text: 'Hello #$index',
         pinned: math.Random().nextBool(),
         pinnedAt: DateTime.now(),
         pinnedBy: User(id: 'testUserId$index'),
+        i18n: {
+          'en_text': 'Hello #$index',
+          'hi_text': 'नमस्ते #$index',
+          'language': 'en',
+        },
       ),
     );
     final allMessages = [

packages/stream_chat_persistence/test/src/dao/user_dao_test.dart

@@ -22,6 +22,7 @@ void main() {
       (index) => User(
         id: 'testUserId$index',
         role: 'testRole',
+        language: 'hi',
         createdAt: DateTime.now(),
         updatedAt: DateTime.now(),
         lastActive: DateTime.now(),