Move update comment to attachment field

so that it is not hidden when issue description is long.

app/models/messenger.rb

@@ -159,16 +159,6 @@ class Messenger
     def attachment_text_from_journal(journal)
       obj = journal.details.detect { |j| j.prop_key == 'description' && j.property == 'attr' }
       text = obj.value if obj.present?
-
-      if journal.notes.present?
-        if text.present?
-          text << "\n\n*#{l :label_comment}*\n"
-          text << journal.notes
-        else
-          text = journal.notes
-        end
-      end
-
       text.present? ? markup_format(text) : nil
     end
 

lib/redmine_messenger/patches/issue_patch.rb

@@ -88,6 +88,11 @@ module RedmineMessenger
           end
 
           fields = current_journal.details.map { |d| Messenger.detail_to_field(d, project) }
+          if current_journal.notes.present?
+            fields << { title: I18n.t(:label_comment),
+                        value: Messenger.markup_format(current_journal.notes),
+                        short: false }
+          end
           fields << { title: I18n.t(:field_is_private), short: true } if current_journal.private_notes?
           fields.compact!
           attachment[:fields] = fields if fields.any?