add only notify mentions icon in home screen cells

Session/Shared/ConversationCell.swift

@@ -230,6 +230,13 @@ final class ConversationCell : UITableViewCell {
         let result = NSMutableAttributedString()
         if threadViewModel.isMuted {
             result.append(NSAttributedString(string: "\u{e067}  ", attributes: [ .font : UIFont.ows_elegantIconsFont(10), .foregroundColor : Colors.unimportant ]))
+        } else if threadViewModel.isOnlyNotifyMentions {
+            let imageAttachment = NSTextAttachment()
+            imageAttachment.image = UIImage(named: "NotifyMentions.png")?.asTintedImage(color: Colors.unimportant)
+            imageAttachment.bounds = CGRect(x: 0, y: -2, width: Values.smallFontSize, height: Values.smallFontSize)
+            let imageString = NSAttributedString(attachment: imageAttachment)
+            result.append(imageString)
+            result.append(NSAttributedString(string: "  ", attributes: [ .font : UIFont.ows_elegantIconsFont(10), .foregroundColor : Colors.unimportant ]))
         }
         if let rawSnippet = threadViewModel.lastMessageText {
             let snippet = MentionUtilities.highlightMentions(in: rawSnippet, threadID: threadViewModel.threadRecord.uniqueId!)