Taha Tesser cd60efc618
Fix default avatar icon theme size for Material 2 (#152307)
fixes [ActionChip avatar still does not respect padding](https://github.com/flutter/flutter/issues/116508)

### Code sample

<details>
<summary>expand to view the code sample</summary> 

```dart
import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(brightness: Brightness.dark, useMaterial3: false),
      home: Scaffold(
        body: Center(
          child: Builder(
            builder: (BuildContext context) {
              return Chip(
                padding: const EdgeInsets.all(16.0),
                avatar: const Icon(Icons.favorite),
                label: const Text('Chip A'),
                onDeleted: () {},
              );
            },
          ),
        ),
      ),
    );
  }
}
```

</details>

### Before

<img width="490" alt="Screenshot 2024-07-25 at 16 24 08" src="https://github.com/user-attachments/assets/45408aa2-b3ab-4ff9-ae72-53a91c87c76a">

### After

<img width="490" alt="Screenshot 2024-07-25 at 16 23 56" src="https://github.com/user-attachments/assets/07ba367d-9ca3-46cc-8122-d1155dd2f32b">
2024-07-30 16:44:08 +00:00
..