Fix open group profile picture bug

Signal/src/Loki/Components/ConversationCell.swift

@@ -145,6 +145,7 @@ final class ConversationCell : UITableViewCell {
                 profilePictureView.isRSSFeed = true
             } else if let openGroupProfilePicture = (threadViewModel.threadRecord as! TSGroupThread).groupModel.groupImage { // An open group with a profile picture
                 profilePictureView.openGroupProfilePicture = openGroupProfilePicture
+                profilePictureView.isRSSFeed = false
             } else if (threadViewModel.threadRecord as! TSGroupThread).groupModel.groupType == .openGroup
                 || (threadViewModel.threadRecord as! TSGroupThread).groupModel.groupType == .rssFeed { // An open group without a profile picture or an RSS feed
                 profilePictureView.hexEncodedPublicKey = ""

SignalMessaging/Loki/Redesign/Components/ProfilePictureView.swift

@@ -65,7 +65,7 @@ public final class ProfilePictureView : UIView {
         }
         guard hexEncodedPublicKey != nil || openGroupProfilePicture != nil else { return }
         imageView.image = isRSSFeed ? nil : (openGroupProfilePicture ?? getProfilePicture(of: size, for: hexEncodedPublicKey))
-        imageView.backgroundColor = isRSSFeed ? UIColor(rgbHex: 0x353535) : UIColor(rgbHex: 0xD8D8D8) // UIColor(rgbHex: 0xD8D8D8) = Colors.unimportant
+        imageView.backgroundColor = isRSSFeed ? UIColor(rgbHex: 0x353535) : Colors.unimportant
         imageView.layer.cornerRadius = size / 2
         imageView.contentMode = isRSSFeed ? .center : .scaleAspectFit
         if isRSSFeed {