[Sugestion] Use dart extensions allowing get the translated text from String objects

[hjJunior]

I'd like to suggest this feature, which I've made locally on my project, it helped me to access in a less verbose way :)

But there is the problem of compatibility (we need to force the SDK minimum version up to 2.6.0)

Usage

Most basic

'app:label'.t(context)

Passing arguments

    final yourText = 'app:translate-key'.t(
      context,
      variables: {
        'var1': 'value1',
      },
    );

Implementation

extension I18nStringExtension on String {
  String t(
    BuildContext context, {
    Locale locale,
    String tContext,
    int count,
    Map<String, Object> variables,
    I18NextOptions options,
  }) {
    return I18Next.of(context).t(
      this,
      context: tContext,
      count: count,
      locale: locale,
      options: options,
      variables: variables,
    );
  }
}

---

You u'all agree with the idea, I can open an PR :)

[williamhjcho]

The problem with using extensions would be bumping the sdk min version to 2.7.0

Would you know a good way of keeping them "semantically" stable?

[hjJunior]

I'm not too sure about it too, I guess the only way is bumping the min SDK version.
All packages using this feature that I looked for have defined this minimum SDK version...

[williamhjcho]

Hey, @hjJunior would you be willing to add the extension?