add french translations

packages/stream_chat_localizations/lib/src/stream_chat_localizations.dart

@@ -6,7 +6,7 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart'
     show StreamChatLocalizations, User;
 
 part 'stream_chat_localizations_en.dart';
-
+part 'stream_chat_localizations_fr.dart';
 part 'stream_chat_localizations_hi.dart';
 
 /// The set of supported languages, as language code strings.
@@ -17,7 +17,7 @@ part 'stream_chat_localizations_hi.dart';
 /// See also:
 ///
 ///  * [getStreamChatTranslation], whose documentation describes these values.
-const kStreamChatSupportedLanguages = {'en', 'hi'};
+const kStreamChatSupportedLanguages = {'en', 'hi', 'fr'};
 
 /// Creates a [GlobalStreamChatLocalizations] instance for the given `locale`.
 ///
@@ -43,6 +43,8 @@ GlobalStreamChatLocalizations? getStreamChatTranslation(Locale locale) {
       return const StreamChatLocalizationsEn();
     case 'hi':
       return const StreamChatLocalizationsHi();
+    case 'fr':
+      return const StreamChatLocalizationsFr();
   }
 }