Fix dart formatting

Author: amikhail48

.github/workflows/ui.yml

@@ -1,4 +1,4 @@
-name: Flutter CI
+name: UI CI
 
 on:
   push:

ui/test/widget_test.dart

@@ -38,7 +38,8 @@ void main() {
     TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
         .setMockMessageHandler('flutter/assets', (ByteData? message) async {
       if (message == null) return null;
-      final String assetPath = String.fromCharCodes(message.buffer.asUint8List());
+      final String assetPath =
+          String.fromCharCodes(message.buffer.asUint8List());
       if (assetPath == 'assets/supported.xml') {
         return mockXmlData;
       }