Add null-safety for list props with type dynamic

lib/features/email/domain/state/download_attachment_for_web_state.dart

@@ -60,5 +60,5 @@ class DownloadAttachmentForWebFailure extends FeatureFailure {
   DownloadAttachmentForWebFailure(this.taskId, this.exception);
 
   @override
-  List<Object> get props => [taskId, exception];
+  List<Object?> get props => [taskId, exception];
 }

lib/features/email/domain/state/download_attachments_state.dart

@@ -11,10 +11,10 @@ class DownloadAttachmentsSuccess extends UIState {
 }
 
 class DownloadAttachmentsFailure extends FeatureFailure {
-  final exception;
+  final dynamic exception;
 
   DownloadAttachmentsFailure(this.exception);
 
   @override
-  List<Object> get props => [exception];
+  List<Object?> get props => [exception];
 }

lib/features/email/domain/state/export_attachment_state.dart

@@ -15,5 +15,5 @@ class ExportAttachmentFailure extends FeatureFailure {
   ExportAttachmentFailure(this.exception);
 
   @override
-  List<Object> get props => [exception];
+  List<Object?> get props => [exception];
 }

lib/features/email/domain/state/get_email_content_state.dart

@@ -32,5 +32,5 @@ class GetEmailContentFailure extends FeatureFailure {
   GetEmailContentFailure(this.exception);
 
   @override
-  List<Object> get props => [exception];
+  List<Object?> get props => [exception];
 }

lib/features/email/domain/state/get_stored_state_email_state.dart

@@ -27,5 +27,5 @@ class GetStoredEmailStateFailure extends FeatureFailure {
   GetStoredEmailStateFailure(this.exception);
 
   @override
-  List<Object> get props => [exception];
+  List<Object?> get props => [exception];
 }

lib/features/email/domain/state/mark_as_email_read_state.dart

@@ -29,5 +29,5 @@ class MarkAsEmailReadFailure extends FeatureFailure {
   MarkAsEmailReadFailure(this.exception, this.readActions);
 
   @override
-  List<Object> get props => [exception, readActions];
+  List<Object?> get props => [exception, readActions];
 }

lib/features/email/domain/state/mark_as_email_star_state.dart

@@ -28,5 +28,5 @@ class MarkAsStarEmailFailure extends FeatureFailure {
   MarkAsStarEmailFailure(this.exception, this.markStarAction);
 
   @override
-  List<Object> get props => [exception, markStarAction];
+  List<Object?> get props => [exception, markStarAction];
 }

lib/features/email/domain/state/move_to_mailbox_state.dart

@@ -47,5 +47,5 @@ class MoveToMailboxFailure extends FeatureFailure {
   MoveToMailboxFailure(this.emailActionType, this.exception);
 
   @override
-  List<Object> get props => [emailActionType, exception];
+  List<Object?> get props => [emailActionType, exception];
 }