chore: update dependencies

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.1
+- Update dependencies
+- Improve documentation
+
 ## 2.0.0
 - New `preferPlainText` option to use the mime message's plain text instead of the html part when available.
 - Convert HTML line-breaks to plain text line-breaks when calling `HtmlToPlainTextConverter.convert(String html);` 

example/enough_mail_html_example.dart

@@ -30,7 +30,7 @@ class StyleTextDomTransformer extends DomTransformer {
       TransformConfiguration configuration) {
     final paragraphs = document.getElementsByTagName('p');
     for (final paragraph in paragraphs) {
-      paragraph.attributes['style'] = configuration.customValues!['textStyle'];
+      paragraph.attributes['style'] = configuration.customValues?['textStyle'];
     }
   }
 }

pubspec.yaml

@@ -9,10 +9,9 @@ environment:
 dependencies:
   enough_mail: ^2.0.0
   html: ^0.15.0
-  image: ^4.0.13
+  image: ^4.0.0
 
 dependency_overrides:
-  xml: ^6.0.1
   # out-comment for git or local development
   # enough_mail:
   #   git:

test/enough_mail_html_test.dart

@@ -31,7 +31,7 @@ void main() {
 
       final meta = Element.html('<meta name="viewport" '
           'content="width=device-width, initial-scale=1.0">');
-      document.head!.append(meta);
+      document.head?.append(meta);
       final imageElements = document.getElementsByTagName('img');
       for (final imageElement in imageElements) {
         final src = imageElement.attributes['src'];
@@ -42,9 +42,6 @@ void main() {
         }
       }
       //print(document.outerHtml);
-
-      final doc = parse('<p>hello world</p>');
-      // print(doc.outerHtml);
     });
   });
 }