fixes [`hourMinuteTextStyle` Material 3 default doesn't match the specs](https://github.com/flutter/flutter/issues/143748)

This updates `hourMinuteTextStyle` defaults to match Material 3 specs. `hourMinuteTextStyle` should use different font style for different entry modes based on the specs.

### Specs
![Screenshot 2024-02-20 at 15 06 40](https://github.com/flutter/flutter/assets/48603081/5198a5da-314d-401e-8d7f-d4a68b86e43c)
![Screenshot 2024-02-20 at 15 07 22](https://github.com/flutter/flutter/assets/48603081/79436ce4-fef6-480a-bc43-b628497e860f)

### Before
```dart
 return _textTheme.displayMedium!.copyWith(color: _hourMinuteTextColor.resolve(states));
```
### After 
```dart
      return entryMode == TimePickerEntryMode.dial
        ? _textTheme.displayLarge!.copyWith(color: _hourMinuteTextColor.resolve(states))
        : _textTheme.displayMedium!.copyWith(color: _hourMinuteTextColor.resolve(states));
```