Material 3 causes progressing misalignment in code and line numbers

[alexeyinkin]

Note: This issue is about misalignment that progresses with each line. For equally misaligned lines with Material 2, see #261

Steps to reproduce:

1. Take the 02.code_field example as of 0f18b2b1dab6cf7db3aeeb152fc02d287e662ea7
2. Add the following property to MaterialApp:

      theme: ThemeData(
        useMaterial3: true,
      ),

• Without that, numbers are either aligned or equally misaligned, as described in https://github.com/akvelon/flutter-code-editor/issues/261
• With that:

Web:

iOS:

[T2XX]

you can solve it by using parameter:

 gutterStyle: const GutterStyle(textStyle: TextStyle(height: 1.5)),