Merge branch 'develop' into v4

packages/stream_chat_flutter/lib/src/extension.dart

@@ -272,3 +272,12 @@ extension MessageX on Message {
     return copyWith(text: messageTextToSend);
   }
 }
+
+/// Extensions on [Uri]
+extension UriX on Uri {
+  /// Return the URI adding the http scheme if it is missing
+  Uri get withScheme {
+    if (hasScheme) return this;
+    return Uri.parse('http://${toString()}');
+  }
+}