[web] Text with TextAlign.justify not work on iPhone

When I use:

```dart
Text(
  'my long text',
  textAlign: TextAlign.justify,
),
```

In the Mac Chrome and Safari working fine and also in Android Chrome, but not in the Safari and in Chrome for iOS.

I have investigated and I found that the problem is caused by `white-space: pre-wrap;` that not work with `text-align: justify;`.