TF-3410 Use TextTheme apply almost text style for text widget

Signed-off-by: dab246 <tdvu@linagora.com>

model/lib/extensions/username_extension.dart

@@ -1,8 +0,0 @@
-import 'package:jmap_dart_client/jmap/core/user_name.dart';
-import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
-
-extension UsernameExtension on UserName {
-  String get firstCharacter => value.isNotEmpty ? value[0].toUpperCase() : '';
-
-  EmailAddress toEmailAddress() => EmailAddress(null, value);
-}

model/lib/model.dart

@@ -58,7 +58,6 @@ export 'extensions/presentation_email_extension.dart';
 export 'extensions/presentation_mailbox_extension.dart';
 export 'extensions/properties_extension.dart';
 export 'extensions/session_extension.dart';
-export 'extensions/username_extension.dart';
 export 'extensions/utc_date_extension.dart';
 export 'extensions/contact_support_capability_extension.dart';
 export 'extensions/list_id_extension.dart';

model/pubspec.lock

@@ -292,10 +292,10 @@ packages:
     dependency: transitive
     description:
       name: ffi
-      sha256: "7bf0adc28a23d395f19f3f1eb21dd7cfd1dd9f8e1c50051c069122e6853bc878"
+      sha256: "16ed7b077ef01ad6170a3d0c57caa4a112a38d7a2ed5602e0aca9ca6f3d98da6"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.3"
   file:
     dependency: transitive
     description:
@@ -1250,18 +1250,18 @@ packages:
     dependency: transitive
     description:
       name: win32
-      sha256: "5a751eddf9db89b3e5f9d50c20ab8612296e4e8db69009788d6c8b060a84191c"
+      sha256: a79dbe579cb51ecd6d30b17e0cae4e0ea15e2c0e66f69ad4198f22a6789e94f4
       url: "https://pub.dev"
     source: hosted
-    version: "4.1.4"
+    version: "5.5.1"
   win32_registry:
     dependency: transitive
     description:
       name: win32_registry
-      sha256: "1c52f994bdccb77103a6231ad4ea331a244dbcef5d1f37d8462f713143b0bfae"
+      sha256: "723b7f851e5724c55409bb3d5a32b203b3afe8587eaf5dafb93a5fed8ecda0d6"
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.4"
   xdg_directories:
     dependency: transitive
     description: