✨ Generate formatter page width header

Author: AlexV525

packages/core/lib/generators/assets_generator.dart

@@ -145,6 +145,7 @@ Future<String> generateAssets(
   }
 
   final buffer = StringBuffer();
+  buffer.writeln('// dart format width=${formatter.pageWidth}\n');
   buffer.writeln(header);
   buffer.writeln(ignore);
   buffer.writeln(importsBuffer.toString());

packages/core/lib/generators/colors_generator.dart

@@ -24,6 +24,7 @@ String generateColors(
 
   final buffer = StringBuffer();
   final className = colorsConfig.outputs.className;
+  buffer.writeln('// dart format width=${formatter.pageWidth}');
   buffer.writeln(header);
   buffer.writeln(ignore);
   buffer.writeln("import 'package:flutter/painting.dart';");

packages/core/lib/generators/fonts_generator.dart

@@ -45,6 +45,7 @@ String generateFonts(
 
   final buffer = StringBuffer();
   final className = fontsConfig.outputs.className;
+  buffer.writeln('// dart format width=${formatter.pageWidth}');
   buffer.writeln(header);
   buffer.writeln(ignore);
   buffer.writeln('class $className {');