fix(ui): fix jiffy locale initialization (#1255)

* fix(ui): fix jiffy locale initialization

* chore(ui): update changelog

* fix(ui): cleanup

packages/stream_chat_flutter/CHANGELOG.md

@@ -1,3 +1,9 @@
+## Upcming
+
+🐞 Fixed
+
+- [[#1247]](https://github.com/GetStream/stream-chat-flutter/issues/1247) Fix Jiffy initialization.
+
 ## 4.4.0
 
 🐞 Fixed

packages/stream_chat_flutter/lib/src/stream_chat.dart

@@ -140,11 +140,10 @@ class StreamChatState extends State<StreamChat> {
 
   @override
   void didChangeDependencies() {
-    final currentLocale = Localizations.localeOf(context);
-    final languageCode = currentLocale.languageCode;
+    final currentLocale = Localizations.localeOf(context).toString();
     final availableLocales = Jiffy.getAllAvailableLocales();
-    if (availableLocales.contains(languageCode)) {
-      Jiffy.locale(languageCode);
+    if (availableLocales.contains(currentLocale)) {
+      Jiffy.locale(currentLocale);
     }
     super.didChangeDependencies();
   }