Taha Tesser 7ff31a4f7a
Fix wide DatePicker input mode button padding for Material 3 (#147236)
fixes [Wide `DatePickerDialog` "Switch to input" button has no margin from dialog side](https://github.com/flutter/flutter/issues/141338)

### Description
Currently, there is no material design token for the input mode button padding. This PR fixes the padding by taking date picker side padding values into account.

![specs](https://github.com/flutter/flutter/assets/48603081/4d946d57-1e00-4b11-b414-0788a20fe0cb)

### 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(
      home: Scaffold(
        body: Center(
          child: Builder(builder: (BuildContext context) {
            return ElevatedButton(
              onPressed: () {
                showDatePicker(
                  context: context,
                  initialDate: DateTime.now(),
                  firstDate: DateTime.utc(2010),
                  lastDate: DateTime.utc(2030),
                );
              },
              child: const Text('Show Date Picker'),
            );
          }),
        ),
      ),
    );
  }
}

```

</details>

### Before
![before](https://github.com/flutter/flutter/assets/48603081/e3a70179-540f-4307-b996-7cf35d28adbc)

### After
![after](https://github.com/flutter/flutter/assets/48603081/c65a2d1d-b0ae-4969-868e-e64f5c845fcb)
2024-04-29 22:14:01 +00:00
..
2024-04-09 19:35:07 +00:00
2024-03-24 18:01:17 +00:00
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2024-04-09 19:35:07 +00:00