fix(llc): fixed locales (#2043)

Author: d3xvn

packages/stream_chat/CHANGELOG.md

@@ -3,6 +3,10 @@
 ✅ Added
 - Added user blocking to the client.
 
+🐞 Fixed
+
+- Fixed locale conversion in jiffy.
+
 ## 8.1.0
 
 ✅ Added

packages/stream_chat_flutter/lib/src/stream_chat.dart

@@ -164,7 +164,8 @@ class StreamChatState extends State<StreamChat> {
 
   @override
   void didChangeDependencies() {
-    final currentLocale = Localizations.localeOf(context).toString();
+    final currentLocale =
+        Localizations.localeOf(context).toString().toLowerCase();
     final availableLocales = Jiffy.getSupportedLocales();
     if (availableLocales.contains(currentLocale)) {
       Jiffy.setLocale(currentLocale);